(5+x)/x=21/6

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Solution for (5+x)/x=21/6 equation: 



(5+x)/x=21/6

We move all terms to the left:

(5+x)/x-(21/6)=0



Domain of the equation: x!=0

x∈R



We add all the numbers together, and all the variables

(x+5)/x-(+21/6)=0

We get rid of parentheses

(x+5)/x-21/6=0

We calculate fractions


(6x+30)/6x+(-21x)/6x=0

We multiply all the terms by the denominator


(6x+30)+(-21x)=0

We get rid of parentheses

6x-21x+30=0

We add all the numbers together, and all the variables

-15x+30=0

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

-15x=-30

x=-30/-15

x=+2

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