9/x-4=5/x

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Solution for 9/x-4=5/x equation: 


D( x )

x = 0

x = 0

x = 0

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

9/x-4 = 5/x // - 5/x

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

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

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

x^-1 = 1

-1 < 0

1/(x^1) = 1 // * x^1

1 = 1*x^1 // : 1

1 = x^1

x = 1

x = 1

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