Question

Watch the following video to learn how to solve two-step equations:
Video Player

Examples of how work should look
If typed:

2x-8=28

2x=36

x=18

If uploaded:



Please make sure that I can see your work and answer clearly.

Question 1
In each of the following problems you will be solving multi-step equations. YOU MUST SHOW WORK IN ORDER TO RECIEVE FULL CREDIT. You can either type it or upload it.

Each question is worth 2 points (1 point for the work and 1 point for the correct answer.)



1. Solve the following equation for x:

4x + 7 = 23-8

(1 point)
x =


Question 2
You may either type your work or upload a picture using the button.(1 point)
0 / 10000 Word Limit
Question 3
2. Solve the following equation for x:

-5 = 3m - 14+12

(1 point)
x =


Question 4
You may either type your work or upload a picture using the button.(1 point)
0 / 10000 Word Limit
Question 5
3. Solve the following equation for x:

7(x - 9) = -21+21

(1 point)
x =


Question 6
You may either type your work or upload a picture using the button.(1 point)
0 / 10000 Word Limit
Watch the following video to learn how to solve equations with variables on both sides of the equal sign:
Video Player

Question 7
4. Solve the following equation for x:

7x - 5 = 3x + 15

(1 point)
x=


Question 8
You may either type your work or upload a picture using the button.(1 point)
0 / 10000 Word Limit
Question 9
5. Solve the following equation for x:

8x - 8 = -4x + 16-100

(1 point)
x =


Question 10
You may either type your work or upload a picture using the button.(1 point)
0 / 10000 Word Limit
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Answer 1

Here are the solutions with the work shown for each problem.

1) 4x + 7 = 23 − 8
4x + 7 = 15
4x = 15 − 7
4x = 8
x = 8/4
x = 2

2) (upload placeholder)

3) −5 = 3m − 14 + 12
−5 = 3m − 2 (since −14 + 12 = −2)
−5 + 2 = 3m
−3 = 3m
m = −3/3
m = −1
(If you prefer the variable x, x = −1.)

4) (upload placeholder)

5) 7(x − 9) = −21 + 21
7(x − 9) = 0 (since −21 + 21 = 0)
x − 9 = 0 (divide both sides by 7)
x = 9

6) (upload placeholder)

7) 7x − 5 = 3x + 15
7x − 3x − 5 = 15
4x − 5 = 15
4x = 20
x = 20/4
x = 5

8) (upload placeholder)

9) 8x − 8 = −4x + 16 − 100
8x − 8 = −4x − 84 (since 16 − 100 = −84)
8x + 4x − 8 = −84
12x − 8 = −84
12x = −84 + 8
12x = −76
x = −76/12 = −19/3 (≈ −6 1/3)

10) (upload placeholder)

Answers summary:
1) x = 2
3) m = −1 (x = −1 if using x)
5) x = 9
7) x = 5
9) x = −19/3