7-s=-2s

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Solution for 7-s=-2s equation: 



7-s=-2s

We move all terms to the left:

7-s-(-2s)=0

We add all the numbers together, and all the variables

-1s-(-2s)+7=0

We get rid of parentheses

-1s+2s+7=0

We add all the numbers together, and all the variables

s+7=0

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

s=-7

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