3s+12=15

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Solution for 3s+12=15 equation: 



3s+12=15

We move all terms to the left:

3s+12-(15)=0

We add all the numbers together, and all the variables

3s-3=0

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

3s=3

s=3/3

s=1

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