4.2/57=7.5/x

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Solution for 4.2/57=7.5/x equation: 



4.2/57=7.5/x

We move all terms to the left:

4.2/57-(7.5/x)=0



Domain of the equation: x)!=0

x!=0/1

x!=0

x∈R



We add all the numbers together, and all the variables

-(+7.5/x)+4.2/57=0

We get rid of parentheses

-7.5/x+4.2/57=0

We calculate fractions

There is no solution for this equation

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