How do you solve -7x-3x+2=-8x-8 ?

1 Answer
Apr 27, 2018

x=5

Explanation:

First, add 8x to both sides

-7x-3x+2+8x=-8x-8+8x

Combine like terms

Left Side: -7x-3x+2+8x

-10x+2+8x

-2x+2

Right Side: -8x-8+8x

0x-8

-8

Whole thing

-2x+2=-8

Now subtract 2 from both sides

-2x+2-2=-8-2

-2x+0=-10

-2x=-10

Divide each side by -2

(-2x)/-2=(-10)/-2

The negatives cancel on both sides because a negative value divided by another negative value is a positive value

(2x)/2=(10)/2

Simplify

x=5