7/21=a/3

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Solution for 7/21=a/3 equation: 



7/21=a/3

We move all terms to the left:

7/21-(a/3)=0

We add all the numbers together, and all the variables

-(+a/3)+7/21=0

We get rid of parentheses

-a/3+7/21=0

We calculate fractions

There is no solution for this equation

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