x/(x+4)+4/(x+4)+2=0

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Solution for x/(x+4)+4/(x+4)+2=0 equation: 


D( x )

x+4 = 0

x+4 = 0

x+4 = 0

x+4 = 0 // - 4

x = -4

x in (-oo:-4) U (-4:+oo)

x/(x+4)+4/(x+4)+2 = 0

x/(x+4)+4/(x+4)+(2*(x+4))/(x+4) = 0

2*(x+4)+x+4 = 0

x+2*x+4+8 = 0

3*x+12 = 0

(3*x+12)/(x+4) = 0

(3*x+12)/(x+4) = 0 // * x+4

3*x+12 = 0

3*x+12 = 0 // - 12

3*x = -12 // : 3

x = -12/3

x = -4

x in { -4} 

x belongs to the empty set

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