

二元一次聯立方程式
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Mathematics
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6th - 8th Grade
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Medium
Fan-Hsuan Lin
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0 Slides • 7 Questions
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【計算題】說明 (7,11) 是 2x+y=25 的解
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我們知道只搭單程的人數為 y ,剛剛我們看到只有去程和只有回程搭纜車的人數分別為 10−x 和 15−x ,所以我們可以列出什麼式子。
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幫老師確認這題的解答正確無誤
【計算題】說明 (7,11) 是 2x+y=25 的解
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