問題詳情
1.熊大利用代入消去法解二元一次聯立方程式 
由②式整理 得__？__......③帶入①得5x+2(3x－7) =8，請問_？_可以是下列哪一個的算式？
(A)y=3x－7
(B) y =7－3x
(C) y =7x－3
(D) x = 
參考答案
答案：A
難度：計算中-1
書單：沒有書單，新增
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