( )若(2x+1)與(5Y-4)成反比，而且當x＝1時，y＝3，則當y＝1時，x＝？(A)(B) 　(C)(D)-3 。

問題詳情

12.( )若(2x+1)與(5Y-4)成反比，而且當x＝1時，y＝3，則當y＝1時，x＝？
(A)
(B)

　
(C)
(D)-3 。

參考答案

答案：C
難度：適中0.5
統計：A(0),B(0),C(1),D(1),E(0)

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