12s+9=29-8s

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Solution for 12s+9=29-8s equation: 



12s+9=29-8s

We move all terms to the left:

12s+9-(29-8s)=0

We add all the numbers together, and all the variables

12s-(-8s+29)+9=0

We get rid of parentheses

12s+8s-29+9=0

We add all the numbers together, and all the variables

20s-20=0

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

20s=20

s=20/20

s=1

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