-9=8x-7

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Solution for -9=8x-7 equation: 



-9=8x-7

We move all terms to the left:

-9-(8x-7)=0

We get rid of parentheses

-8x+7-9=0

We add all the numbers together, and all the variables

-8x-2=0

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

-8x=2

x=2/-8

x=-1/4

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