2(3s+9)=90

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Solution for 2(3s+9)=90 equation: 



2(3s+9)=90

We move all terms to the left:

2(3s+9)-(90)=0

We multiply parentheses

6s+18-90=0

We add all the numbers together, and all the variables

6s-72=0

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

6s=72

s=72/6

s=12

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