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6下列何者能消去二元一次聯立方程式 中的一個未知數?(A) (1)+(2)×2 (B) (1)×3+(2)×3 (C) (1)-(2)×2 (D) (1)×4-(2)×3
問題詳情
6下列何者能消去二元一次聯立方程式
中的一個未知數?
(A) (1)+(2)×2
(B) (1)×3+(2)×3
(C) (1)-(2)×2
(D) (1)×4-(2)×3
參考答案
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