8=8r+9r

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Solution for 8=8r+9r equation: 



8=8r+9r

We move all terms to the left:

8-(8r+9r)=0

We add all the numbers together, and all the variables

-(+17r)+8=0

We get rid of parentheses

-17r+8=0

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

-17r=-8

r=-8/-17

r=8/17

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