-2(s-20)=18

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Solution for -2(s-20)=18 equation: 



-2(s-20)=18

We move all terms to the left:

-2(s-20)-(18)=0

We multiply parentheses

-2s+40-18=0

We add all the numbers together, and all the variables

-2s+22=0

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

-2s=-22

s=-22/-2

s=+11

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