9(r-86)=90

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Solution for 9(r-86)=90 equation: 



9(r-86)=90

We move all terms to the left:

9(r-86)-(90)=0

We multiply parentheses

9r-774-90=0

We add all the numbers together, and all the variables

9r-864=0

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

9r=864

r=864/9

r=96

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