21.8=85/x

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Solution for 21.8=85/x equation: 



21.8=85/x

We move all terms to the left:

21.8-(85/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

-(+85/x)+21.8=0

We get rid of parentheses

-85/x+21.8=0

We multiply all the terms by the denominator


(21.8)*x-85=0

We multiply parentheses

21.8x-85=0

We move all terms containing x to the left, all other terms to the right

21.8x=85

x=85/21.8

x=3+12.25/13.625

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