8r-7=2r+12

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Solution for 8r-7=2r+12 equation: 



8r-7=2r+12

We move all terms to the left:

8r-7-(2r+12)=0

We get rid of parentheses

8r-2r-12-7=0

We add all the numbers together, and all the variables

6r-19=0

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

6r=19

r=19/6

r=3+1/6

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