-84+15r=3r+12r

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Solution for -84+15r=3r+12r equation: 



-84+15r=3r+12r

We move all terms to the left:

-84+15r-(3r+12r)=0

We add all the numbers together, and all the variables

15r-(+15r)-84=0

We get rid of parentheses

15r-15r-84=0

We add all the numbers together, and all the variables

-84!=0

There is no solution for this equation

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