Answer:
x = -4
Step-by-step explanation:
We are given the expression -7x - 4 = -8x + 8 and are asked to solve for x. To do so, we need to isolate x entirely. Start by getting only one side have the variable x, add 7x to both sides:
-7x - 4 = -8x + 8
-4 = -x + 8
Now we need to get on the only side alone, subtract by both sides:
-4 = -x + 8
4 = -x
-x = 4
Now we can't have a negative x, so we need to divide both sides by a negative 1:
-x = 4
x = -4
