1/x+1/(x+4)=0

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Solution for 1/x+1/(x+4)=0 equation: 


D( x )

x+4 = 0

x = 0

x+4 = 0

x+4 = 0

x+4 = 0 // - 4

x = -4

x = 0

x = 0

x in (-oo:-4) U (-4:0) U (0:+oo)

1/(x+4)+1/x = 0

(1*x)/(x*(x+4))+(1*(x+4))/(x*(x+4)) = 0

1*(x+4)+1*x = 0

2*x+4 = 0

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

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

2*x+4 = 0

2*x+4 = 0 // - 4

2*x = -4 // : 2

x = -4/2

x = -2

x = -2

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