X-1/5-4-X/2-2=0
回答 (3)
2010-10-09 2:20 am
✔ 最佳答案
(x-1)/5-(4-x)/2-2=0(x-1)/5-(4-x)/2=2
10[(x-1)/5-(4-x)/2]=2x10
2(x-1)-5(4-x)=20
2x-2-20+5x=20
7x=42
x=6
參考: me
2010-10-09 3:54 am
X-1/5-(4-X/2)-2=0
X-1/5-(4-X/2)=2
10((X-1/5)-(4-X/2))=2x10
2x-2-20x+5x=20
7x=42
x=6
X-1/5-(4-X/2)=2
10((X-1/5)-(4-X/2))=2x10
2x-2-20x+5x=20
7x=42
x=6
2010-10-09 2:20 am
X-1/5-4-X/2-2=0
X/2 = 6+1/5
5X = 60+2
X = 62/5
= 12 2/5
X/2 = 6+1/5
5X = 60+2
X = 62/5
= 12 2/5
收錄日期: 2021-04-19 23:21:25
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20101008000051KK00866