12(7r-)=84r-12

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



12(7r-)=84r-12

We move all terms to the left:

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

We add all the numbers together, and all the variables

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

We multiply parentheses

84r-(84r-12)=0

We get rid of parentheses

84r-84r+12=0

We add all the numbers together, and all the variables

12!=0

There is no solution for this equation

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