-4(s+3)=21

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Solution for -4(s+3)=21 equation: 



-4(s+3)=21

We move all terms to the left:

-4(s+3)-(21)=0

We multiply parentheses

-4s-12-21=0

We add all the numbers together, and all the variables

-4s-33=0

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

-4s=33

s=33/-4

s=-8+1/4

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