-1=-7x-8

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Solution for -1=-7x-8 equation: 



-1=-7x-8

We move all terms to the left:

-1-(-7x-8)=0

We get rid of parentheses

7x+8-1=0

We add all the numbers together, and all the variables

7x+7=0

We move all terms containing x to the left, all other terms to the right

7x=-7

x=-7/7

x=-1

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