F.3 Maths,HELP!
2010-10-24 5:50 am
回答 (1)
2010-10-24 7:10 am
✔ 最佳答案
(x-3)/5 -(2+5x)/3 <=93x-9-(5)(2+5x)<=9(15)
-22x-19<=135
x>=-7
2010-10-23 23:12:17 補充：
is that you write
(3/4)(x+1) + 2(4-x)/5 >=2 ?
2010-10-23 23:14:51 補充：
如果係的話
(3x+3)/4 + (8-2x)/5 >=2
15x+15 +32-8x>= 40
7x>= -7
x>= -1
收錄日期: 2021-04-23 20:26:28
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101023000051KK03133