2/z=17/z-7

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Solution for 2/z=17/z-7 equation: 


D( z )

z = 0

z = 0

z = 0

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

2/z = 17/z-7 // - 17/z-7

2/z-(17/z)+7 = 0

2/z-17*z^-1+7 = 0

-15*z^-1 = -7 // : -15

z^-1 = 7/15

-1 < 0

1/(z^1) = 7/15 // * z^1

1 = 7/15*z^1 // : 7/15

15/7 = z^1

z = 15/7

z = 15/7

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