Z-2/z-9=7/z-9 - solution

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Solution for Z-2/z-9=7/z-9 equation:

x in (-oo:+oo)

Z-(2/z)-9 = 7/z-9 // - 7/z-9

Z-(2/z)-(7/z)-9+9 = 0

Z-2*z^-1-7*z^-1-9+9 = 0

Z-9*z^-1 = 0

x należy do R

x in (-oo:+oo)

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