Algerba
回答 (7)
2006-11-10 2:04 am
✔ 最佳答案
2a+3=3a-4 3 + 4 = 3a - 2a
7 = a
a = 7
2006-11-10 5:28 am
2a+3=3a-4 a
2a-3a+4a=-3
-a=-3
a=3
2a-3a+4a=-3
-a=-3
a=3
2006-11-10 3:46 am
2a+3=3a-4
3+4=3a-2a
a=7
3+4=3a-2a
a=7
2006-11-10 2:04 am
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收錄日期: 2021-04-12 22:50:27
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061109000051KK02686