x/(3x+15)=4

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Solution for x/(3x+15)=4 equation: 



x/(3x+15)=4

We move all terms to the left:

x/(3x+15)-(4)=0



Domain of the equation: (3x+15)!=0

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

3x!=-15

x!=-15/3

x!=-5

x∈R



We multiply all the terms by the denominator


x-4*(3x+15)=0

We multiply parentheses

x-12x-60=0

We add all the numbers together, and all the variables

-11x-60=0

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

-11x=60

x=60/-11

x=-5+5/11

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