5/7=c/21

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Solution for 5/7=c/21 equation: 



5/7=c/21

We move all terms to the left:

5/7-(c/21)=0

We add all the numbers together, and all the variables

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

We get rid of parentheses

-c/21+5/7=0

We calculate fractions

There is no solution for this equation

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