15點! 有中一數唔識計

2008-06-01 11:01 pm
(6x-1)/4=x-1/3 ←4分之6x-1等於x-3分之1


比步驟我睇睇唔該!

回答 (4)

2008-06-05 10:19 pm
✔ 最佳答案
(6x-1)/4=x-1/3

首先兩邊x4(整走分母)

6x-1 = 4x-(4/3)

然後再兩邊X3(整走埋4/3的3)

變成 18x-3 = 12x-4

之後移項,x歸x:數字歸數字

 18x - 12x = -4 + 3

    6x = -1

最後將 6 移埋過走 -1 嗰邊 (有兩個方法)

1:就咁將6移過去俾-1 騎住

2:兩邊 X ( 1 / 6 ) , 消去 6x 的 6

就變成 x = -1 / 6

打次無中文字既俾你

  (6x-1)/4=x-1/3

 〔(6x-1)/4=x-1/3〕X4

   6x-1 = 4x-(4/3)

  〔6x-1 = 4x-(4/3)〕X3

   18x-3 = 12x-4

18x - 12x = -4 + 3

    6x = -1

    x = -1 / 6
參考: byfrgnhvt
2008-06-09 6:14 pm
is like this:
(6x-1)/4 =3x/3 - 1/3
(6x-1)/4 = (3x-1)/3
3(6x-1) = 4(3x-1)
18x-3 = 12x-4
18x-12x = -4+3
6x = -1
x= -1/6
2008-06-01 11:33 pm
(6x-1)/4 =3x/3 - 1/3
(6x-1)/4 = (3x-1)/3
3(6x-1) = 4(3x-1)
18x-3 = 12x-4
18x-12x = -4+3
6x = -1
x= -1/6
2008-06-01 11:28 pm
(6x-1)/4=x-1/3
18x-3=12x-4
6x=-1
x=-1/6


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