Question

Answer for x
−8x=−x−28

Answer 1

x = 4

Explanation:

-8x = -x - 28

Move the -x on the right side to the left

-8x + x = -28

-7x = -28

Cross out the negatives

7x = 28

Divide by 7

x = 4

Answer 2

`x = 4`

Explanation:

`-8x = -x - 28 \text{ / Add 8x}\\-8x + 8x = -x - 28 + 8x\\\to 0 = 7x - 28 \text{ / Add 28}\\0 + 28 = 7x - 28 + 28\\\to 28 = 7x \text{ / Divide by 7}\\\frac{28}7 = \frac{7x}7\\4 = x`