Question 511050: Step by step on how to solve: 8x - 2 = -9 + 7x
Answer by RicaMath(8)   (Show Source):
You can put this solution on YOUR website! To solve this problem, you need to isolate the x variable.
1) Subtract 7x from both sides.
8x - 2 - 7x = -9 + 7x - 7x
x - 2 = -9
2) Add 2 to each side.
x - 2 + 2 = -9 + 2
x = -7
You can always double check your work by plugging the answer back into the original problem:
8x - 2 = -9 + 7x
8(-7) - 2 = -9 + 7(-7)
-56 - 2 = -9 - 49
-58 = -58
This is a true statement, therefore the answer is indeed x = -7.
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