7/21=d/39

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Solution for 7/21=d/39 equation: 



7/21=d/39

We move all terms to the left:

7/21-(d/39)=0

We add all the numbers together, and all the variables

-(+d/39)+7/21=0

We get rid of parentheses

-d/39+7/21=0

We calculate fractions

There is no solution for this equation

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