-2=s+7

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Solution for -2=s+7 equation: 



-2=s+7

We move all terms to the left:

-2-(s+7)=0

We get rid of parentheses

-s-7-2=0

We add all the numbers together, and all the variables

-1s-9=0

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

-s=9

s=9/-1

s=-9

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