-8=r+3

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Solution for -8=r+3 equation: 



-8=r+3

We move all terms to the left:

-8-(r+3)=0

We get rid of parentheses

-r-3-8=0

We add all the numbers together, and all the variables

-1r-11=0

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

-r=11

r=11/-1

r=-11

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