1. 43-13p+17=2p
2. 9b-1=3b+11
3. 8-2x=4x-10
4. 46-3y=22-9y
5. 15+13x-39=10x-16-7x
收錄日期: 2021-04-12 17:45:11
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061014000051KK01652