-12r+15+6r=-11-8r

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Solution for -12r+15+6r=-11-8r equation: 



-12r+15+6r=-11-8r

We move all terms to the left:

-12r+15+6r-(-11-8r)=0

We add all the numbers together, and all the variables

-12r+6r-(-8r-11)+15=0

We add all the numbers together, and all the variables

-6r-(-8r-11)+15=0

We get rid of parentheses

-6r+8r+11+15=0

We add all the numbers together, and all the variables

2r+26=0

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

2r=-26

r=-26/2

r=-13

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