6/z=42/49

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Solution for 6/z=42/49 equation: 


D( z )

z = 0

z = 0

z = 0

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

6/z = 42/49 // - 42/49

6/z-(42/49) = 0

6/z-6/7 = 0

6*z^-1 = 6/7 // : 6

z^-1 = 1/7

-1 < 0

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

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

7 = z^1

z = 7

z = 7

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