2s+7=31

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Solution for 2s+7=31 equation: 



2s+7=31

We move all terms to the left:

2s+7-(31)=0

We add all the numbers together, and all the variables

2s-24=0

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

2s=24

s=24/2

s=12

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