12+6r=r+7r

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



12+6r=r+7r
We move all terms to the left:
12+6r-(r+7r)=0
We add all the numbers together, and all the variables
6r-(+8r)+12=0
We get rid of parentheses
6r-8r+12=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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