請給過程
(x+1):(y+2):z-3=2:3:4,且x+y+z=18則:
(1)x=?
(2)(2x+y):(z+5)=?
收錄日期: 2021-04-30 15:46:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20110505000015KK08911