2/7=a-4/21

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Solution for 2/7=a-4/21 equation: 



2/7=a-4/21

We move all terms to the left:

2/7-(a-4/21)=0

We add all the numbers together, and all the variables

-(+a-4/21)+2/7=0

We get rid of parentheses

-a+4/21+2/7=0

We calculate fractions

There is no solution for this equation

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