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3涓嫻鏋?鈫?15鍏?br/> 5涓嫻鏋?鈫?X鍏?/p>

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• 濡傛灉涓や釜閲忔槸鍚屾柟鍚戝彉鍖栵紙姣斿鑻规灉瓒婂閽辫秺澶氾級锛屽氨杩欎箞鍐欙細3/5 = 15/X
• 瑕佹槸鍙嶆柟鍚戝彉鍖栵紙姣斿宸ヤ汉瓒婂宸ユ湡瓒婄煭锛夛紝灏卞緱鍊掕繃鏉ワ細3/5 = X/15

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鈫?3X = 75
鈫?X = 25

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• 瑙ｉ鎬濊矾锛氳柉鍖呮暟鍜岄挶鏁版槸姝ｆ瘮鍏崇郴
• 鍒楀紡锛?/6 = 20/X 鈫?X=30鍏?/li>

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• 鍒楀紡锛?/6 = X/6 鈫?X=3灏忔椂

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