(x)/(x+7)=4/3

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Solution for (x)/(x+7)=4/3 equation: 



(x)/(x+7)=4/3

We move all terms to the left:

(x)/(x+7)-(4/3)=0



Domain of the equation: (x+7)!=0

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

x!=-7

x∈R



We add all the numbers together, and all the variables

x/(x+7)-(+4/3)=0

We get rid of parentheses

x/(x+7)-4/3=0

We calculate fractions


3x/(3x+21)+(-4x-28)/(3x+21)=0

We multiply all the terms by the denominator


3x+(-4x-28)=0

We get rid of parentheses

3x-4x-28=0

We add all the numbers together, and all the variables

-1x-28=0

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

-x=28

x=28/-1

x=-28

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