12r-5=15+17r

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Solution for 12r-5=15+17r equation: 



12r-5=15+17r

We move all terms to the left:

12r-5-(15+17r)=0

We add all the numbers together, and all the variables

12r-(17r+15)-5=0

We get rid of parentheses

12r-17r-15-5=0

We add all the numbers together, and all the variables

-5r-20=0

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

-5r=20

r=20/-5

r=-4

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