(3x+9)/x=12/5

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Solution for (3x+9)/x=12/5 equation: 



(3x+9)/x=12/5

We move all terms to the left:

(3x+9)/x-(12/5)=0



Domain of the equation: x!=0

x∈R



We add all the numbers together, and all the variables

(3x+9)/x-(+12/5)=0

We get rid of parentheses

(3x+9)/x-12/5=0

We calculate fractions


(15x+45)/5x+(-12x)/5x=0

We multiply all the terms by the denominator


(15x+45)+(-12x)=0

We get rid of parentheses

15x-12x+45=0

We add all the numbers together, and all the variables

3x+45=0

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

3x=-45

x=-45/3

x=-15

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