-8r-7=r+11

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Solution for -8r-7=r+11 equation: 



-8r-7=r+11

We move all terms to the left:

-8r-7-(r+11)=0

We get rid of parentheses

-8r-r-11-7=0

We add all the numbers together, and all the variables

-9r-18=0

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

-9r=18

r=18/-9

r=-2

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