1)6分1(x-4)-4分1(2-x)=2分1
2)4分5x-(-x+5)=-(x-3)-5分2(2+2x)
全x＝未知數不是乘號
要有詳細的步驟
2007-04-20 1:05 am
回答 (3)
2007-04-20 1:29 am
✔ 最佳答案
1) (x-4)/6-(2-X)/4=1/2(2X-8)/12-(6-3X)/12=6/12
(2X-8-6+3X)/12=6/12
(5X-14)/12=6/12
5X-14=6
5X=20
X=4
2) 這題的題見有沒有抄錯？
2007-04-20 1:51 am
1)(1/6)(x-4)-(1/4)(2-x)=1/2
(x-4)/6-(2+x)/4=1/2
(2x-8-6+3x)/12=1/2
5x-14=(1/2)(12)
5x=6+14
x=20/5
x=4
2)無可能的???(我以最直接的方法)
[5x-(-x+5)]/4= -(x-3)- [2(2+2x)]/5
(6x-5)/4=(-x+3)+(-4-4x)/5
1.5x-1.25=3-x-2.2-2.2x
3.7x=4.25-2.2
x=2.05/3.7
(x-4)/6-(2+x)/4=1/2
(2x-8-6+3x)/12=1/2
5x-14=(1/2)(12)
5x=6+14
x=20/5
x=4
2)無可能的???(我以最直接的方法)
[5x-(-x+5)]/4= -(x-3)- [2(2+2x)]/5
(6x-5)/4=(-x+3)+(-4-4x)/5
1.5x-1.25=3-x-2.2-2.2x
3.7x=4.25-2.2
x=2.05/3.7
2007-04-20 1:19 am
1) 1/6(x-4)-1(2-x)/4=1/2
1/6x-2/3 - 2-x/4=1/2
1/6x-2/3-2-x=4
1/6x-x=4+2/3
1/6x-x=4/2/3
-5/6x=4/2/3
x=5/3/5
I don't know how to do (2)
1/6x-2/3 - 2-x/4=1/2
1/6x-2/3-2-x=4
1/6x-x=4+2/3
1/6x-x=4/2/3
-5/6x=4/2/3
x=5/3/5
I don't know how to do (2)
參考: me
收錄日期: 2021-04-12 23:57:28
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070419000051KK02354