r=8+3r

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Solution for r=8+3r equation: 



r=8+3r

We move all terms to the left:

r-(8+3r)=0

We add all the numbers together, and all the variables

r-(3r+8)=0

We get rid of parentheses

r-3r-8=0

We add all the numbers together, and all the variables

-2r-8=0

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

-2r=8

r=8/-2

r=-4

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