2r-12=-5r+51

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Solution for 2r-12=-5r+51 equation: 



2r-12=-5r+51

We move all terms to the left:

2r-12-(-5r+51)=0

We get rid of parentheses

2r+5r-51-12=0

We add all the numbers together, and all the variables

7r-63=0

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

7r=63

r=63/7

r=9

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