方程式 列式請詳細
回答 (2)
2007-10-18 2:29 am
✔ 最佳答案
３{4(2.5-p)+1}=13-2P ３{10-4p+1}=13-2P
33 - 12p = 13 -2p
20 = 10p
p = 2
2007-10-18 5:21 am
3{4(2.5-p)+1=13-2p
3[10-4p+1]=13-2p
30-12p+3=13-2p
10p=20
p=2
3[10-4p+1]=13-2p
30-12p+3=13-2p
10p=20
p=2
收錄日期: 2021-04-13 13:58:19
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071017000051KK02416