-8=2+2r

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Solution for -8=2+2r equation: 



-8=2+2r

We move all terms to the left:

-8-(2+2r)=0

We add all the numbers together, and all the variables

-(2r+2)-8=0

We get rid of parentheses

-2r-2-8=0

We add all the numbers together, and all the variables

-2r-10=0

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

-2r=10

r=10/-2

r=-5

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