-15+5r+8+7r=2r-7

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Solution for -15+5r+8+7r=2r-7 equation: 



-15+5r+8+7r=2r-7

We move all terms to the left:

-15+5r+8+7r-(2r-7)=0

We add all the numbers together, and all the variables

12r-(2r-7)-7=0

We get rid of parentheses

12r-2r+7-7=0

We add all the numbers together, and all the variables

10r=0

r=0/10

r=0

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