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

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



(R)=R+3/R(R+4)

We move all terms to the left:

(R)-(R+3/R(R+4))=0



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

R∈R



We multiply all the terms by the denominator


R*R(R+4))-(R+3=0

Wy multiply elements

R^2(R+3=0

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