(1/x+1)+(4/x+7)=1

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Solution for (1/x+1)+(4/x+7)=1 equation: 


D( x )

x = 0

x = 0

x = 0

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

1/x+4/x+1+7 = 1 // - 1

1/x+4/x-1+1+7 = 0

5*x^-1 = -7 // : 5

x^-1 = -7/5

-1 < 0

1/(x^1) = -7/5 // * x^1

1 = -7/5*x^1 // : -7/5

-5/7 = x^1

x = -5/7

x = -5/7

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