9/2=8/z

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Solution for 9/2=8/z equation: 


D( z )

z = 0

z = 0

z = 0

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

9/2 = 8/z // - 8/z

9/2-(8/z) = 0

9/2-8*z^-1 = 0

-8*z^-1 = -9/2 // : -8

z^-1 = 9/16

-1 < 0

1/(z^1) = 9/16 // * z^1

1 = 9/16*z^1 // : 9/16

16/9 = z^1

z = 16/9

z = 16/9

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