5/7=20/f

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Solution for 5/7=20/f equation: 



5/7=20/f

We move all terms to the left:

5/7-(20/f)=0



Domain of the equation: f)!=0

f!=0/1

f!=0

f∈R



We add all the numbers together, and all the variables

-(+20/f)+5/7=0

We get rid of parentheses

-20/f+5/7=0

We calculate fractions

There is no solution for this equation

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