6+3r-7r=-6-6r

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Solution for 6+3r-7r=-6-6r equation: 



6+3r-7r=-6-6r

We move all terms to the left:

6+3r-7r-(-6-6r)=0

We add all the numbers together, and all the variables

3r-7r-(-6r-6)+6=0

We add all the numbers together, and all the variables

-4r-(-6r-6)+6=0

We get rid of parentheses

-4r+6r+6+6=0

We add all the numbers together, and all the variables

2r+12=0

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

2r=-12

r=-12/2

r=-6

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