x=2 y=3時(shí) kx-y=1 k=
x=2 y=3時(shí) kx-y=1 k=
數(shù)學(xué)人氣：518 ℃時(shí)間：2020-06-18 13:59:11
優(yōu)質(zhì)解答
k=2
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