9+s=-7+3s

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Solution for 9+s=-7+3s equation: 



9+s=-7+3s

We move all terms to the left:

9+s-(-7+3s)=0

We add all the numbers together, and all the variables

s-(3s-7)+9=0

We get rid of parentheses

s-3s+7+9=0

We add all the numbers together, and all the variables

-2s+16=0

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

-2s=-16

s=-16/-2

s=+8

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