7k-(9k-16)=14-(19-K)
唔該快!!!!!
f.1 maths.
2007-10-09 2:19 am
回答 (2)
2007-10-09 2:24 am
✔ 最佳答案
7k-(9k-16)=14-(19-K)7k-9k+16=14-19+K
7k-9k+16-14+19-K=0
-3k+21=0
-3k=-21
k=7
參考: me
2007-10-09 2:27 am
7k-(9k-16)=14-(19-K)
7k-9k+16=14-19+K
7k-9k+16-14+19-K=0
-3k+21=0
-3k=-21
k=7
7k-9k+16=14-19+K
7k-9k+16-14+19-K=0
-3k+21=0
-3k=-21
k=7
收錄日期: 2021-04-13 13:49:03
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071008000051KK02597