-(m+17)/8+(m+4)/5=-3
要有步驟,thx!!!
F.1 maths 1題 急!!! (10點)
2008-10-24 3:59 am
回答 (2)
2008-10-24 4:47 am
✔ 最佳答案
See below:The LCM is 8x5=40
-(m+17)/8+(m+4)/5=-3
-m-17/8+(m+4)/5=-3
40(-m-17/8 +m+4/5)=-3x40
-5m-85+ 8m +32=-120
3m-53=-120
3m-=-67
m=-67/3
2008-10-24 4:42 am
-(m+17)/8+(m+4)/5=-3
-m-17/12+m/5=-3
-m-17/12+m=-15
-m-17=-180-15m
-m+15m=17-180
14m=-163
m=- 163/14
-m-17/12+m/5=-3
-m-17/12+m=-15
-m-17=-180-15m
-m+15m=17-180
14m=-163
m=- 163/14
參考: 我自己
收錄日期: 2021-04-13 16:11:13
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081023000051KK01699