3(-2s-1)=-7s

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Solution for 3(-2s-1)=-7s equation: 



3(-2s-1)=-7s

We move all terms to the left:

3(-2s-1)-(-7s)=0

We multiply parentheses

-6s-(-7s)-3=0

We get rid of parentheses

-6s+7s-3=0

We add all the numbers together, and all the variables

s-3=0

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

s=3

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