*填問號(求問號答案)
(1)
(Y+14)x9 除2(over2) = 108
(Y+14)x9 除2(over2) x 2 over9 = 108x?
Y+14 = ?
Y+14-14 = ?-?
Y = ?
(2)
7B-6 = 3B+10
B = ?
收錄日期: 2021-04-15 18:15:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080301000051KK02229