15/x-4=9/x

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Solution for 15/x-4=9/x equation: 


D( x )

x = 0

x = 0

x = 0

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

15/x-4 = 9/x // - 9/x

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

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

6*x^-1 = 4 // : 6

x^-1 = 2/3

-1 < 0

1/(x^1) = 2/3 // * x^1

1 = 2/3*x^1 // : 2/3

3/2 = x^1

x = 3/2

x = 3/2

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