7s+31=122

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Solution for 7s+31=122 equation: 



7s+31=122

We move all terms to the left:

7s+31-(122)=0

We add all the numbers together, and all the variables

7s-91=0

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

7s=91

s=91/7

s=13

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