12r-12=r+15

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Solution for 12r-12=r+15 equation: 



12r-12=r+15

We move all terms to the left:

12r-12-(r+15)=0

We get rid of parentheses

12r-r-15-12=0

We add all the numbers together, and all the variables

11r-27=0

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

11r=27

r=27/11

r=2+5/11

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