3s+18=12

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Solution for 3s+18=12 equation: 



3s+18=12

We move all terms to the left:

3s+18-(12)=0

We add all the numbers together, and all the variables

3s+6=0

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

3s=-6

s=-6/3

s=-2

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