9-3(-3r-7)=6r+7

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Solution for 9-3(-3r-7)=6r+7 equation: 



9-3(-3r-7)=6r+7

We move all terms to the left:

9-3(-3r-7)-(6r+7)=0

We multiply parentheses

9r-(6r+7)+21+9=0

We get rid of parentheses

9r-6r-7+21+9=0

We add all the numbers together, and all the variables

3r+23=0

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

3r=-23

r=-23/3

r=-7+2/3

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