9=4s-7

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Solution for 9=4s-7 equation: 



9=4s-7

We move all terms to the left:

9-(4s-7)=0

We get rid of parentheses

-4s+7+9=0

We add all the numbers together, and all the variables

-4s+16=0

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

-4s=-16

s=-16/-4

s=+4

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