7/15=21/c

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Solution for 7/15=21/c equation: 



7/15=21/c

We move all terms to the left:

7/15-(21/c)=0



Domain of the equation: c)!=0

c!=0/1

c!=0

c∈R



We add all the numbers together, and all the variables

-(+21/c)+7/15=0

We get rid of parentheses

-21/c+7/15=0

We calculate fractions

There is no solution for this equation

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