3x + 5 = 2x + 7 What should you do first to isolate the variable?

Answers

Answer 1

Answer:

you can subtract 2x from both sides

Then subtract 5 from both sides.

x = 2 is what the equation gives you

Step-by-step explanation:

You can do one of two things.

1. You can subtract 2x from both sides of the equation

or

2. You can subtract 5 from both sides of the equation.

Either one will give you the correct answer.

3x - 2x + 5 = 2x - 2x + 7    Combine the xs

1x + 5 = 7                             Subtract 5 from both sides.

x + 5-5 = 7-5

x = 2

Answer 2

Answer:

subtract the lowest variable from the highest variable.

Step-by-step explanation:

3x+5=2x+7

1x+5=7

add the 5 to the 7

12

divide 12 and the 3x

Answer: 4.

x=4


Related Questions

PLEASE HELP DON’T ANSWER IF YOU DON’T KNOW!! Mr. Sanchez drives 120 miles in 3 hours. At the same rate, how far will he drive
in 5 hours?

Answers

Answer:

200 miles

Step-by-step explanation:

First have to find how many miles he drives in 1 hour. So, we divide 120 miles by 3 hours, since we assume that he managed to drive an equal amount in each hour.

120/3=40

This shows that Mr. Sanchez drove at a rate of 40 mph.

But, this isn't the answer. 40 miles is the distance for one hour of driving. To find the distance for 5 hours, we have to multiply the distance by 5 as well.

40 times 5=200

Answer~

O 200 miles

Explination~first you start by dividing 120 by 3 to find out how many miles he drives in one hour

120 ÷ 3

=

40

Then you would time 40 by 5 to get how many miles he can drive in 5 hours

40 × 5

=

200

------------------------------------------------------------------------

Hope I helped!!

Hometown Cable has the 'Triple Play' package. It offers a land line. Internet service, and cable TV for one fixed price. If you already subscribe to their cell phone service, they offer and additional 12% off the price of the 'Triple Play' package. If the DISCOUNTED price of the 'Triple Play' package is $132, what is the price of the package WITHOUT the discount? (Hint: What % of the original price is the discounted price?)

Answers

Answer:

the price of the package without the discount is $150

Step-by-step explanation:

The computation of the price of the package without the discount is shown below:

Let us assume the price without discount be x

So after discount it would be x - 0.12x = 0.88x

Now the equation would be

0.88x = $132

x = $132 ÷ 0.88

= $150

hence, the price of the package without the discount is $150

We simply applied the above formula so that the correct value could come

And, the same is to be considered

A kiddie pool holds miniature plastic ducks in different colors. Sophia randomly picks up a duck and then replaces it. She repeats this process 100 times. The table shows the results of her experiment.

Duck Color Times Picked
red 30
green 20
yellow 40
blue 10

What is the relative frequency of choosing a red duck? What color of duck is there likely to be the most of in the pool?

A.
The relative frequency is 0.3. It is likely that most ducks are blue.
B.
The relative frequency is 0.2. It is likely that most ducks are yellow.
C.
The relative frequency is 0.3. It is likely that most ducks are yellow.
D.
The relative frequency is 0.2. It is likely that most ducks are green.

Answers

Answer:

C

Step-by-step explanation:

Red is 30, so 30/100 or 0.3

Most is yellow.

So its C

Hope this helps plz hit the crown :D

Answer:

c

Step-by-step explanation:

What is 100 ÷ 4, rounded to the nearest hundredth?

Answers

Answer: 0

Step-by-step explanation:

100/4 = 25 because 25x4=100 then 25 is rounded down to 0 because it’s below 50. If it was 60 we would round it up to 100

whats the inverse if 2 5/8

Answers

Answer:

[tex]\frac{8}{21}[/tex]

Step-by-step explanation:

Given:

[tex]2\frac{5}{8}=\frac{8*2+5}{8}[/tex]

Mutliply :

[tex]2\frac{5}{8} =\frac{16+5}{8}[/tex]

Add:

[tex]2\frac{5}{8} =\frac{21}{8}[/tex]

Multiplicative inverse:

[tex]2\frac{5}{8} =\frac{8}{21}[/tex]

Which of the following gives all of the sets that contain sqrt9?
A. the set of all irrational numbers
B. the set of all natural numbers, the set of all whole numbers, and the set of all integers
C. the set of all integers, the set of all rational numbers, and the set of all real numbers
D. the set of all natural numbers, the set of all whole numbers, the set of all integers, the set of all rational numbers, and the set of all real numbers

Answers

Answer: C the set of all integers, the set of all rational numbers, and the set of all real numbers

Step-by-step explanation: The value of square root of 9 is ±3. This means that there two answers to square root of 9: 3 and -3.

As far as 3 is concerned, it is one of the elements of the natural number set. It is already known that natural numbers are also whole numbers, also integers, also rational numbers, and also real numbers.

As far as -3 is concerned, it is not a natural number since the set of natural numbers does not contain negative numbers. -3 is an integer. Which means that -3 is also a rational number and also a real number.

After identifying the common sets and taking the intersection of both the above classifications, it yields the set of all integers, the set of all rational numbers, and the set of all real numbers

Hopes this helps bro

Please help me this is the only one I got stuck on

Answers

sorry dude I'm stupid I would help but I'm a idot

A person drilled a hole in a die and filled it with a lead​ weight, then proceeded to roll it 200 times. Here are the observed frequencies for the outcomes of​ 1, 2,​ 3, 4,​ 5, and​ 6, respectively: 28​, 29​, 40​, 41​, 28​, 34. Use a 0.10 significance level to test the claim that the outcomes are not equally likely. Does it appear that the loaded die behaves differently than a fair​ die

Answers

Solution :

The objective of the study is to test the claim that the loaded die behaves at a different way than a fair die.

Null hypothesis, [tex]$H_0:p_1=p_1=p_3=p_4=p_5=p_6=\frac{1}{6}$[/tex]

That is the loaded die behaves as a fair die.

Alternative hypothesis, [tex]$H_a$[/tex] : loaded die behave differently than the fair die.

Number of attempts , n = 200

Expected frequency, [tex]$E_i=np_i$[/tex]

                                        [tex]$=200 \times \frac{1}{6} = 33.333$[/tex]

Test statistics, [tex]$x^2= \sum^6_{i=1} \frac{(O_i-E_i)^2}{E_i} $[/tex]

                            [tex]$=\frac{(28-33.333)^2}{33.333}+\frac{(29-33.333)^2}{33.333}+\frac{(40-33.333)^2}{33.333}+\frac{(41-33.333)^2}{33.333}+\frac{(28-33.333)^2}{33.333}+$[/tex][tex]$\frac{(34-33.333)^2}{33.333}$[/tex]

≈ 5.8

Degrees of freedom, df = n - 1

                                       = 6 - 1

                                       = 5

Level of significance, α = 0.10

At α = 0.10 with df = 5, the critical value from the chi square table

[tex]$x^2_{\alpha}= \text{chi inv}(0.10,5)$[/tex]

     = 9.236

Thus the critical value is [tex]$x_{\alpha}^2=9.236$[/tex]

[tex]$P \text{ value} = P[x^2_{df} \geq x^2]$[/tex]

             [tex]$=P[x^2_5\geq 5.80]$[/tex]

             = chi dist (5.80, 5)

             = 0.3262

Decision : The value of test statistics 5.80 is not greater than the critical value 9.236, thus fail to reject [tex]$H_o$[/tex] at 10% LOS.

Conclusion : There is no enough evidence to support the claim that the loaded die behave in a different than a fair die.

In the equation y=mx, how do you find m on a graph?

Answers

Answer:

m is the slope of the equation y=mx+b. TO find the slope you look at the y intercept of the graph, b, and from that point find how much up/down and to the right/left you need to go. For example from point 0, 4, the y intercept, to another point on the graph (any point on the line would work) 2, 8 , I need to go up 4 units and to the right 2 units. The slope is 4/2 or just 2.'

If this is too confusing just find two points on the line in a graph and folow this equation: y2-y1 / x2-x1

where y2 is the y value of the second point, y1 is the y value of the first point, x1 is the x value of the first point and x2 is the value of x in the second point

Step-by-step explanation:

Answer:

In the equation y=mx+b, m is the slope. The formula for slope is [tex]\frac{y_{1}-y_{2} }{x_{1}-x_{2} }[/tex], so to solve find any two points on the graph and plug them into the formula. You could also count the difference, remember that slope is the change in y over the change in x. For example, if y increases by 3 units and x increases by 2 units then the slope is 3/2.

Please answer correctly !!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!

Answers

Answer:

the last one [d)]

Step-by-step explanation:

First, we need to use the triangle inequality theorem. The sum of the lengths of the two sides must be greater than the third side.

a) 7+14=21=21 (this cannot represent a triangle)

b) 13+23=36<37 (this cannot represent a triangle)

c) 7+18=25=25 (this cannot represent a triangle)

d) 11+24=35>32 (this can represent a triangle)

d) is the answer

Hope this helps!

HELP!!! ASAP!!! WILL MARK BRANLIST!!!!!

Answers

You’ve got the correct answer (which is the first one) hope this helps

Answer:

It's me again!!

It's A or the one u clicked on

Step-by-step explanation:

because (2^3)-5 eqeuals 1/32768

and 1/2^15 equals to 1/32768

HELPPP!!!! MEEE!!!!! WITH!!!! MATH!!!!

Answers

Answer:

B

Step-by-step explanation:

look at the picture I really need help understanding!​

Answers

Answer:

I believe it is

1) yes

2) no

3) no

4)no

Step-by-step explanation:

It can only be a solution if you put the x in from the table into the x of the equation and the y in from the same ordered pair into the equation for y and if you get 1 for the fist equation it is a solution but you also have to get 7 for the second equation for it to fully be a solution. Also, you can go to desmos and enter the equations and then substitute the x's and y's... you will have to delete the =1 and =7 in order for the website to tell you what it equals.

2x - 3
= 9
4
heleororidi

Answers

Answer:

x=6

Step-by-step explanation:

2x-3=9

ad three on both sides then divide 2 on both sides

2x - 3
= 9
4
heleororidi



Answer


X=6

What is the solution for x in the equation?
-x + 3/7 = 2x - 25/7
A. x = -3/4
B. x = -4/3
C. x = 4/3
D. x = 3/4

Answers

Answer:

C. x=4/3

Step-by-step explanation:

Answer:

4/3

Step-by-step explanation:

I got it right on the test

The airplane Li’s family will be flying on can seat up to 149 passengers. If 96 passengers are currently on the plane, how many more passengers can board?

Answers

53 passengers can aboard

Answer:

no more than 53

What is the answer for 2[7d-(5)(1.05)]?

Answers

i think the answer is 14d-10.5 correct me if i’m wrong

Answer:

14d-10.50

Step-by-step explanation:

clear the brackets by putting an invisible one in front for example: (5)= 1 x 5, then simplify the like terms example: -5 + 1.05 = -3.95 ( it's a positive sign because the invisible one in front of the (1.05) is positive), then do the distributive law for example: 2( 7d - 3.95) is equal to 14d-10.50

A mapscale says: 2 inches equals 25 miles. How many miles does 6 inches represent??

Answers

the answer is 75 miles!
you can set up a proportion- 2/25=6/x and cross multiply, then solve for x in the equation 2x=150

Between which two numbers is V35 ?
3&5
3&4
4&5
5&6
6&7
17&18

Answers

Answer:

between 5 and 6

Step-by-step explanation:

You mean the square root of 35? You can get that by pressing the omega symbol at the bottom of the editor. Ω It's the √ the third one on the top row.

Anyway that does nothing to add to your question.

√35 is very nearly √36 which is 6

√35 is between 5 and 6. (Choice 4 down).

Write the equation in standard form ax + by = 0
y=2x+5

Answers

Answer:

2x + 1y = 5

Step-by-step explanation:

You don't need to type the 1 because all ones are invisible in algebra.

PLEASEEEE HELP ME PLEASEEE

Answers

Answer: Your answer is: (-4,∞)

*
What is the circumference?

16 in

Answers

Answer:50.27

Step-by-step explanation:

which number is the smallest
a. 1.28x10-^4
b.2.85x10-^6
c.3.24x10-^5
d.5.48x10-^8

Answers

Answer: I think so A because it being multiple by 10 and u can get 6

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

because it has the smallest power

Which is the better deal: $3.15 for 10 apples or $4.10 for 11 apples?

Answers

Answer:

3.15 for 10 is the better deal

Step-by-step explanation:

This is because $3.15 for 10 apples is worth 32 cents per apple. On the other hand, $4.10 for 11 apples is worth 37 cents per apple. And even though you're getting more apples it is costing you more per apple.

What inequality sign also means "Has a limit of"?
I will mark brainiest

Answers

Answer:

greater/less than or equal to sign

Step-by-step explanation:

Answer: ⩽

Step-by-step explanation:

This inequality symbol means "at most"

hope this helps :)

Juan wants to start a lemonade stand to earn money. He needs money to purchase the materials before he can sell the lemonade and earn money. His mother agrees to loan him $10. He makes a list of the items he wants to buy

Answers

Answer:

a. $13

b. $3

Step-by-step explanation:

Juan wants to start a lemonade stand to earn money. He needs money to purchase the materials before he can sell the lemonade and earn money. His mother agrees to loan him $10. He makes a list of the items he wants to buy.

Cups $2

Lemons $8

Sugar $3

a. How much money do the supplies cost?

b. How much money does he have to spend?

a. Cost of each supply;

Cups $2

Lemons $8

Sugar $3

Total cost of the supplies = $2 + $8 + $3

= $13

b. How much money does he have to spend?

His mother agreed to loan him $10

Total cost of supplies = $13

Amount of money he has to spend = Total cost of supplies - Loan from his mother

= $13 - $10

= $3

Answer:

How much money do the supplies? Answer: $13

How much money does he have to spend? Answer: $10

Step-by-step explanation:

I did it on edge 2021 & got it correct!

Hopefully this helps :)

bye <3

The price of an item has been reduced by 10%. The original price was $46. Find the price of the item now.

Answers

41.4

Step-by-step explanation:

Hope this helps ∞<3

let me know if its right or wrong

SOMEONE HELP ILL KISS U WHAT ARE THESE TWO??????

Answers

Answer:

i can't see the pic can u re upload it?

Step-by-step explanation:

Answer:

i dont know the answer but i did find a link to help u

Step-by-step explanation:

https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-negative-numbers-add-and-subtract/cc-7th-add-negatives/v/adding-negative-numbers

Each of the 90 fourth-grade students at North Elementary read 30 books over the school year.
How many books did they read all together?

Answers

Answer:

2700

Step-by-step explanation:

find the length of the indicated triangle

Answers

Answer:

[tex]35\ units[/tex]

Step-by-step explanation:

[tex]We\ are\ given\ that,\\Side\ JK=(4x+19)\\Side\ KL=(9x-1)\\Now, By\ observing\ the\ triangle, we\ notice\ that\ \angle K = \angle L = \angle J.\\ Hence,\triangle JKL\ is\ an\ equilateral\ triangle\ as\ all\ its\ angles\ are\ equal.\\Hence,\\Another\ property\ of\ an\ equilateral\ triangle\ is\ its\ sides\ are\ equal\ too.\\Hence,\\Side\ JK= Side\ KL= Side\ JL\\Hence,\\By\ focusing\ only\ over\ the\ Sides\ JK\ and KL,\\(4x+19)=(9x-1)\\Hence,\\By\ solving\ the\ equation,\\4x+19=9x-1\\[/tex]

[tex]19+1=9x-4x\\By\ using\ the\ Symmetric\ Property\ Of\ Equation,\\9x-4x=19+1\\Hence,\\5x=20\\x=4\\Now,\\As\ KL=(9x-1)\\By\ substituting\ x=4\ in\ (9x-1) ,\\9*4-1\\=36-1\\=35[/tex]

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