7/x+5/(x+3)=0

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Solution for 7/x+5/(x+3)=0 equation: 



7/x+5/(x+3)=0



Domain of the equation: x!=0

x∈R





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

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

x!=-3

x∈R



We calculate fractions


(7x+21)/(x^2+3x)+5x/(x^2+3x)=0

We multiply all the terms by the denominator


(7x+21)+5x=0

We add all the numbers together, and all the variables

5x+(7x+21)=0

We get rid of parentheses

5x+7x+21=0

We add all the numbers together, and all the variables

12x+21=0

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

12x=-21

x=-21/12

x=-1+3/4

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