7(2s+3)=-21

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Solution for 7(2s+3)=-21 equation: 



7(2s+3)=-21

We move all terms to the left:

7(2s+3)-(-21)=0

We add all the numbers together, and all the variables

7(2s+3)+21=0

We multiply parentheses

14s+21+21=0

We add all the numbers together, and all the variables

14s+42=0

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

14s=-42

s=-42/14

s=-3

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