-6=3r+6+r

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Solution for -6=3r+6+r equation: 



-6=3r+6+r

We move all terms to the left:

-6-(3r+6+r)=0

We add all the numbers together, and all the variables

-(4r+6)-6=0

We get rid of parentheses

-4r-6-6=0

We add all the numbers together, and all the variables

-4r-12=0

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

-4r=12

r=12/-4

r=-3

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