有冇人可以答到我e條數

2009-11-25 6:55 am
y-1/2[y-1/2(y+3)]=2/3(y-1)

回答 (1)

2009-11-25 7:06 am
✔ 最佳答案
As follows:


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收錄日期: 2021-04-25 13:13:28
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20091124000051KK01556

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