12-3s=9s-12

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Solution for 12-3s=9s-12 equation: 



12-3s=9s-12

We move all terms to the left:

12-3s-(9s-12)=0

We get rid of parentheses

-3s-9s+12+12=0

We add all the numbers together, and all the variables

-12s+24=0

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

-12s=-24

s=-24/-12

s=+2

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