45/z=5/2

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Solution for 45/z=5/2 equation: 


D( z )

z = 0

z = 0

z = 0

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

45/z = 5/2 // - 5/2

45/z-(5/2) = 0

45/z-5/2 = 0

45*z^-1 = 5/2 // : 45

z^-1 = 1/18

-1 < 0

1/(z^1) = 1/18 // * z^1

1 = 1/18*z^1 // : 1/18

18 = z^1

z = 18

z = 18

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