7/z=14/10

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Solution for 7/z=14/10 equation: 


D( z )

z = 0

z = 0

z = 0

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

7/z = 14/10 // - 14/10

7/z-(14/10) = 0

7/z-7/5 = 0

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

z^-1 = 1/5

-1 < 0

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

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

5 = z^1

z = 5

z = 5

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