9(s-1)=-18

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Solution for 9(s-1)=-18 equation: 



9(s-1)=-18

We move all terms to the left:

9(s-1)-(-18)=0

We add all the numbers together, and all the variables

9(s-1)+18=0

We multiply parentheses

9s-9+18=0

We add all the numbers together, and all the variables

9s+9=0

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

9s=-9

s=-9/9

s=-1

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