[中學] 一元一次方程式
題目:
下列敘述何者正確
其中的(A)選項: 一元一次方程式都只有一個解
後面解答: (A)是錯誤的,因為也有可能無解或無限多組解
請問無解和無限多組解的情況分別是什麼,他們都是一元一次方程式嗎
懇請解答 謝謝
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