請列明算式
註:2s/3-1=3分之2s後減1 ﹑ s+2/5=5分之s+2
2s/3-1=s+2/5 s=?
2008-10-26 9:24 pm
回答 (2)
2008-10-26 9:30 pm
✔ 最佳答案
As follow As~~~~~~~~~圖片參考：http://www.photo-host.org/img/693446screenhunter_06_oct._26_13.25.gif
2008-10-26 9:33 pm
(2s/3) - 1 = (s+2)/5
3[(2s/3) - 1] = 3[(s+2)/5)]
5(2s - 3) = 5[(3s+6)/5]
10s - 15 = 3s + 6
7s = 21
s =3
3[(2s/3) - 1] = 3[(s+2)/5)]
5(2s - 3) = 5[(3s+6)/5]
10s - 15 = 3s + 6
7s = 21
s =3
參考: 自己
收錄日期: 2021-04-23 20:44:18
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https://hk.answers.yahoo.com/question/index?qid=20081026000051KK00953