-3r-8=15r-12

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Solution for -3r-8=15r-12 equation: 



-3r-8=15r-12

We move all terms to the left:

-3r-8-(15r-12)=0

We get rid of parentheses

-3r-15r+12-8=0

We add all the numbers together, and all the variables

-18r+4=0

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

-18r=-4

r=-4/-18

r=2/9

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