1. x - 6 = x - 3 徐4
2. 2y + 1 徐5 = 3 - y
有2題既中一方程式題目呀,快快快
2008-10-11 6:03 am
回答 (3)
2008-10-11 7:36 am
x-6=x-3/4
(x-6)4=x-3
4x-24=x-3
4x-x=24-3
3x=21
x=7
2y+1/5=3-y
2y+1=(3-y)5
2y+1=15-5y
2y+5y=15-1
7y=14
y=2
(x-6)4=x-3
4x-24=x-3
4x-x=24-3
3x=21
x=7
2y+1/5=3-y
2y+1=(3-y)5
2y+1=15-5y
2y+5y=15-1
7y=14
y=2
參考: 自己計
2008-10-11 6:15 am
1. x - 6 = x - 3 徐4
4(x-6)=x-3
4x-24=x-3
3x=21
x=7
2. 2y + 1 徐5 = 3 - y
2y+1=5(3-y)
2y+1=15-5y
7y=14
y=2
4(x-6)=x-3
4x-24=x-3
3x=21
x=7
2. 2y + 1 徐5 = 3 - y
2y+1=5(3-y)
2y+1=15-5y
7y=14
y=2
2008-10-11 6:10 am
1. x = x-3/4+6
x = x-6 3/4
6 3/4= x-x
= 6 3/4
x = x-6 3/4
6 3/4= x-x
= 6 3/4
收錄日期: 2021-04-13 16:09:50
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https://hk.answers.yahoo.com/question/index?qid=20081010000051KK01898