86=-2+8r

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Solution for 86=-2+8r equation: 



86=-2+8r

We move all terms to the left:

86-(-2+8r)=0

We add all the numbers together, and all the variables

-(8r-2)+86=0

We get rid of parentheses

-8r+2+86=0

We add all the numbers together, and all the variables

-8r+88=0

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

-8r=-88

r=-88/-8

r=+11

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