Some Maths Q.
回答 (1)
2007-07-24 11:19 pm
✔ 最佳答案
a(x-b)=xax-ab=x
ax-x=ab
(a-1)x=ab
x=ab/(a-1)
收錄日期: 2021-04-25 17:17:51
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070724000051KK02582