15=r/9

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Solution for 15=r/9 equation: 



15=r/9

We move all terms to the left:

15-(r/9)=0

We add all the numbers together, and all the variables

-(+r/9)+15=0

We get rid of parentheses

-r/9+15=0

We multiply all the terms by the denominator


-r+15*9=0

We add all the numbers together, and all the variables

-1r+135=0

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

-r=-135

r=-135/-1

r=+135

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