9/x-1-5/x+4

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Solution for 9/x-1-5/x+4 equation: 


D( x )

x = 0

x = 0

x = 0

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

9/x-(5/x)-1+4 = 0

9/x-5*x^-1-1+4 = 0

4*x^-1 = -3 // : 4

x^-1 = -3/4

-1 < 0

1/(x^1) = -3/4 // * x^1

1 = -3/4*x^1 // : -3/4

-4/3 = x^1

x = -4/3

x = -4/3

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