-3(s+5)=12

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Solution for -3(s+5)=12 equation: 



-3(s+5)=12

We move all terms to the left:

-3(s+5)-(12)=0

We multiply parentheses

-3s-15-12=0

We add all the numbers together, and all the variables

-3s-27=0

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

-3s=27

s=27/-3

s=-9

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