6. 已知x＝2, y＝3是方程式x＋2y－3b＝0的解，則b＝________。

問題詳情

6. 已知x＝2, y＝3是方程式x＋2y－3b＝0的解，則b＝________。

參考答案

答案：D
難度：簡單0.837327
統計：A(10),B(38),C(24),D(664),E(0)

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