請寫出詳細步驟。
我有答案，可是欠步驟。
1）2x-1/3=1/2
答案：5/4
2）x+3/2=1-2x/3
答案：-1
中一數學問題
2007-07-05 11:52 pm
回答 (5)
2007-07-06 12:00 am
✔ 最佳答案
1) 2x-1/3=1/26*(2x-1/3)=6*(1/2)
12x-2=3
12x=3+2
12x=5
x=5/12
2) x+3/2=1-2x/3
6*(x+3/2)=6*(1-2x/3)
6x+9=6-2*2x
6x+9=6-4x
6x+4x=6-9
10x=-3
x=-3/10
2007-07-06 12:10 am
1) 2x-1/3=1/2
12x/6 - 2/6 = 3/6
12x=3+2
12x=5
x=5/12
2) x+3/2=1-2x/3
6x/6 + 9/6 = 6/6 - 4x/6
6x+9= 6-4x
10x= -3
x= -3/10
12x/6 - 2/6 = 3/6
12x=3+2
12x=5
x=5/12
2) x+3/2=1-2x/3
6x/6 + 9/6 = 6/6 - 4x/6
6x+9= 6-4x
10x= -3
x= -3/10
2007-07-06 12:05 am
1) (2x-1)/3 *3=1/2 *3
2x-1=3/2
2x=3/2 +1
2x=5/2
x=5/4
2) (x+3)/2 *2= (1-2x)/3 *2
x+3=2(1-2x)/3
(x+3) *3=2(1-2x)
3x+9=2-4x
7x=-7
x=-1
2x-1=3/2
2x=3/2 +1
2x=5/2
x=5/4
2) (x+3)/2 *2= (1-2x)/3 *2
x+3=2(1-2x)/3
(x+3) *3=2(1-2x)
3x+9=2-4x
7x=-7
x=-1
2007-07-06 12:04 am
1) 2x-1/3=1/2
2x=1/2+1/3
2x=3/6+2/6
2x=5/6
x=5/6 /2
x=5/4
2) I do not know, sorry
2x=1/2+1/3
2x=3/6+2/6
2x=5/6
x=5/6 /2
x=5/4
2) I do not know, sorry
2007-07-06 12:03 am
1)
2x-1/3=1/2
2x=1/2+1/3
2x=3/6+2/6
2x=5/6
x=5/6 X 1/2
x=5/12
2x-1/3=1/2
2x=1/2+1/3
2x=3/6+2/6
2x=5/6
x=5/6 X 1/2
x=5/12
收錄日期: 2021-04-12 20:04:52
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