2(r+3)=-12

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Solution for 2(r+3)=-12 equation: 



2(r+3)=-12

We move all terms to the left:

2(r+3)-(-12)=0

We add all the numbers together, and all the variables

2(r+3)+12=0

We multiply parentheses

2r+6+12=0

We add all the numbers together, and all the variables

2r+18=0

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

2r=-18

r=-18/2

r=-9

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