4-(2y/3)=1
(3y-2)/5=4
6-x=4x+1
3-x=7-3x
2(x+1)=1-3x
4+(x+1)=x-1
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收錄日期: 2021-04-13 19:34:31
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20130713000051KK00163