-4/5=3/z-5

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Solution for -4/5=3/z-5 equation: 


D( z )

z = 0

z = 0

z = 0

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

-4/5 = 3/z-5 // - 3/z-5

5-(3/z)-4/5 = 0

5-3*z^-1-4/5 = 0

-3*z^-1 = -21/5 // : -3

z^-1 = 7/5

-1 < 0

1/(z^1) = 7/5 // * z^1

1 = 7/5*z^1 // : 7/5

5/7 = z^1

z = 5/7

z = 5/7

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