21/x=72

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Solution for 21/x=72 equation: 



21/x=72

We move all terms to the left:

21/x-(72)=0



Domain of the equation: x!=0

x∈R



We multiply all the terms by the denominator


-72*x+21=0

We add all the numbers together, and all the variables

-72x+21=0

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

-72x=-21

x=-21/-72

x=7/24

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