42/z=-3

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Solution for 42/z=-3 equation: 


D( z )

z = 0

z = 0

z = 0

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

42/z = -3 // + 3

42/z+3 = 0

42*z^-1 = -3 // : 42

z^-1 = -1/14

-1 < 0

1/(z^1) = -1/14 // * z^1

1 = -1/14*z^1 // : -1/14

-14 = z^1

z = -14

z = -14

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