(20x+9)/x=21

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Solution for (20x+9)/x=21 equation: 



(20x+9)/x=21

We move all terms to the left:

(20x+9)/x-(21)=0



Domain of the equation: x!=0

x∈R



We multiply all the terms by the denominator


(20x+9)-21*x=0

We add all the numbers together, and all the variables

-21x+(20x+9)=0

We get rid of parentheses

-21x+20x+9=0

We add all the numbers together, and all the variables

-1x+9=0

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

-x=-9

x=-9/-1

x=+9

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