20=140/x

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Solution for 20=140/x equation: 



20=140/x

We move all terms to the left:

20-(140/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

-(+140/x)+20=0

We get rid of parentheses

-140/x+20=0

We multiply all the terms by the denominator


20*x-140=0

We add all the numbers together, and all the variables

20x-140=0

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

20x=140

x=140/20

x=7

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