8/13=u/21

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Solution for 8/13=u/21 equation: 



8/13=u/21

We move all terms to the left:

8/13-(u/21)=0

We add all the numbers together, and all the variables

-(+u/21)+8/13=0

We get rid of parentheses

-u/21+8/13=0

We calculate fractions

There is no solution for this equation

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