-0.45/1.8=0.81/z

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Solution for -0.45/1.8=0.81/z equation: 


D( z )

z = 0

z = 0

z = 0

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

-0.45/1.8 = 0.81/z // - 0.81/z

-(0.81/z)-0.45/1.8 = 0

-0.81*z^-1-0.45/1.8 = 0

-0.81*z^-1 = 0.25 // : -0.81

z^-1 = -0.30864198

-1 < 0

1/(z^1) = -0.30864198 // * z^1

1 = -0.30864198*z^1 // : -0.30864198

-3.23999995 = z^1

z = -3.23999995

z = -3.23999995

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