-3(r+7)=-23-2r

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Solution for -3(r+7)=-23-2r equation: 



-3(r+7)=-23-2r

We move all terms to the left:

-3(r+7)-(-23-2r)=0

We add all the numbers together, and all the variables

-3(r+7)-(-2r-23)=0

We multiply parentheses

-3r-(-2r-23)-21=0

We get rid of parentheses

-3r+2r+23-21=0

We add all the numbers together, and all the variables

-1r+2=0

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

-r=-2

r=-2/-1

r=+2

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