8s+9=7s+7

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Solution for 8s+9=7s+7 equation: 



8s+9=7s+7

We move all terms to the left:

8s+9-(7s+7)=0

We get rid of parentheses

8s-7s-7+9=0

We add all the numbers together, and all the variables

s+2=0

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

s=-2

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