大家唔該教教我點計呀..............我計左好耐都唔對呀!
x+2/3+x-4/5>4
簡單數學1..............
2007-04-14 6:42 pm
回答 (2)
2007-04-14 6:51 pm
✔ 最佳答案
x+2/3+x-4/5>4x+10/15+x-12/15>4
(x+10+x-12)/15>4
(2x-2)/15>4
2x-2=60
2x=62
x=31
所以 31>4
參考: 我``
2007-04-14 8:15 pm
x + 2/3 + x - 4/5 > 4
2x - 2/15 > 4
2x > 4 + 2/15
2x > 62/15
x > 31/15
2x - 2/15 > 4
2x > 4 + 2/15
2x > 62/15
x > 31/15
收錄日期: 2021-04-23 14:34:58
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070414000051KK01187