-3(6r+3)=99

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Solution for -3(6r+3)=99 equation: 



-3(6r+3)=99

We move all terms to the left:

-3(6r+3)-(99)=0

We multiply parentheses

-18r-9-99=0

We add all the numbers together, and all the variables

-18r-108=0

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

-18r=108

r=108/-18

r=-6

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