3(2+s)=-15

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Solution for 3(2+s)=-15 equation: 



3(2+s)=-15

We move all terms to the left:

3(2+s)-(-15)=0

We add all the numbers together, and all the variables

3(s+2)-(-15)=0

We add all the numbers together, and all the variables

3(s+2)+15=0

We multiply parentheses

3s+6+15=0

We add all the numbers together, and all the variables

3s+21=0

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

3s=-21

s=-21/3

s=-7

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