12(7r-7)=84r-12

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Solution for 12(7r-7)=84r-12 equation: 



12(7r-7)=84r-12

We move all terms to the left:

12(7r-7)-(84r-12)=0

We multiply parentheses

84r-(84r-12)-84=0

We get rid of parentheses

84r-84r+12-84=0

We add all the numbers together, and all the variables

-72!=0

There is no solution for this equation

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