9/21=x/7

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Solution for 9/21=x/7 equation: 



9/21=x/7

We move all terms to the left:

9/21-(x/7)=0

We add all the numbers together, and all the variables

-(+x/7)+9/21=0

We get rid of parentheses

-x/7+9/21=0

We calculate fractions

There is no solution for this equation

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