7/21=10/x

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Solution for 7/21=10/x equation: 



7/21=10/x

We move all terms to the left:

7/21-(10/x)=0



Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-(+10/x)+7/21=0

We get rid of parentheses

-10/x+7/21=0

We calculate fractions

There is no solution for this equation

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