Question

How and why does this equation -8-x=-3x equal x=4

Answer 1

`- 8 - x = - 3x \\ - 8 = - 3x + x \\ - 8 = - 2x \\ x = - ( - 8)/( - 2) = 4`
First, we add x to both sides and simplify. Then, we divide both sides by -2

Answer 2

because -8-(4)= -12, and -3(4) = -12