12-5r=-6r+7r

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Solution for 12-5r=-6r+7r equation: 



12-5r=-6r+7r

We move all terms to the left:

12-5r-(-6r+7r)=0

We add all the numbers together, and all the variables

-5r-(+r)+12=0

We get rid of parentheses

-5r-r+12=0

We add all the numbers together, and all the variables

-6r+12=0

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

-6r=-12

r=-12/-6

r=+2

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