(5z/z-5)+(2/z-1)=3

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Solution for (5z/z-5)+(2/z-1)=3 equation: 


D( z )

z = 0

z = 0

z = 0

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

2/z+(5*z)/z-5-1 = 3 // - 3

2/z+(5*z)/z-5-3-1 = 0

2*z^-1 = 4 // : 2

z^-1 = 2

-1 < 0

1/(z^1) = 2 // * z^1

1 = 2*z^1 // : 2

1/2 = z^1

z = 1/2

z = 1/2

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