9(r+2)=99

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Solution for 9(r+2)=99 equation: 



9(r+2)=99

We move all terms to the left:

9(r+2)-(99)=0

We multiply parentheses

9r+18-99=0

We add all the numbers together, and all the variables

9r-81=0

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

9r=81

r=81/9

r=9

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