3(7r-2)=21r=6

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Solution for 3(7r-2)=21r=6 equation: 



3(7r-2)=21r=6

We move all terms to the left:

3(7r-2)-(21r)=0

We add all the numbers together, and all the variables

-21r+3(7r-2)=0

We multiply parentheses

-21r+21r-6=0

We add all the numbers together, and all the variables

-6!=0

There is no solution for this equation

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