-8=11+r

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Solution for -8=11+r equation: 



-8=11+r

We move all terms to the left:

-8-(11+r)=0

We add all the numbers together, and all the variables

-(r+11)-8=0

We get rid of parentheses

-r-11-8=0

We add all the numbers together, and all the variables

-1r-19=0

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

-r=19

r=19/-1

r=-19

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