S+7=3s2s+12=2s+12=2s+12

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Solution for S+7=3s2s+12=2s+12=2s+12 equation: 



+7=3S^2S+12=2S+12=2S+12

We move all terms to the left:

+7-(3S^2S+12)=0

We get rid of parentheses

-3S^2S-12+7=0

We add all the numbers together, and all the variables

-3S^2S-5=0

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

-3S^2S=5

S=5/1

S=5

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