-8=-x+7

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Solution for -8=-x+7 equation: 



-8=-x+7

We move all terms to the left:

-8-(-x+7)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

1x-7-8=0

We add all the numbers together, and all the variables

x-15=0

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

x=15

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