5/21=5/7y

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Solution for 5/21=5/7y equation: 



5/21=5/7y

We move all terms to the left:

5/21-(5/7y)=0



Domain of the equation: 7y)!=0

y!=0/1

y!=0

y∈R



We add all the numbers together, and all the variables

-(+5/7y)+5/21=0

We get rid of parentheses

-5/7y+5/21=0

We calculate fractions

There is no solution for this equation

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