6/z=9/z-1/5

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Solution for 6/z=9/z-1/5 equation: 


D( z )

z = 0

z = 0

z = 0

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

6/z = 9/z-(1/5) // - 9/z-(1/5)

6/z-(9/z)+1/5 = 0

6/z-9*z^-1+1/5 = 0

-3*z^-1 = -1/5 // : -3

z^-1 = 1/15

-1 < 0

1/(z^1) = 1/15 // * z^1

1 = 1/15*z^1 // : 1/15

15 = z^1

z = 15

z = 15

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