(4)/(x+4)=(8)/(x+7)=2

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Solution for (4)/(x+4)=(8)/(x+7)=2 equation: 



(4)/(x+4)=(8)/(x+7)=2

We move all terms to the left:

(4)/(x+4)-((8)/(x+7))=0



Domain of the equation: (x+4)!=0

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

x!=-4

x∈R





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

x∈R



We calculate fractions


4x/((x+4)*(x+7)))+(-(8*(x+4))/((x+4)*(x+7)))=0



We calculate terms in parentheses: -(8*(x+4))/((x+4)*(x+7))), so:

8*(x+4))/((x+4)*(x+7))

We multiply all the terms by the denominator


8*(x+4))

We multiply parentheses

8x+

We add all the numbers together, and all the variables

8x

Back to the equation:

-(8x)



We add all the numbers together, and all the variables

-8x+4x/((x+4)*(x+7)))+(=0

We multiply all the terms by the denominator


-8x*((x+4)*(x+7)))+(+4x=0

We add all the numbers together, and all the variables

4x-8x*((x+4)*(x+7)))+(=0

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