代數式
(A) x - 1 / 3 + x + 1 / 4 = 1 / 6
(B) 0 . 4 - 0 . 6 ( x - 3 ) = 1 / 3 x - 3 / 5 ( x - 7 )
收錄日期: 2021-04-13 14:38:03
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070306000051KK03021