-9+17r=7r+11+20r

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Solution for -9+17r=7r+11+20r equation: 



-9+17r=7r+11+20r

We move all terms to the left:

-9+17r-(7r+11+20r)=0

We add all the numbers together, and all the variables

17r-(27r+11)-9=0

We get rid of parentheses

17r-27r-11-9=0

We add all the numbers together, and all the variables

-10r-20=0

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

-10r=20

r=20/-10

r=-2

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