3s+6=90

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Solution for 3s+6=90 equation: 



3s+6=90

We move all terms to the left:

3s+6-(90)=0

We add all the numbers together, and all the variables

3s-84=0

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

3s=84

s=84/3

s=28

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