要詳細
1)4+3n-12=25
2)11-7y+3=-7
3)5h+1-4h=10
4)6m-11m+2=22
5)19-7b-7b=-53
6)2(2x-1)=6
7)3(2-z)=-9
8)16=8(5p+8)
9)5(7+3q)+12=2
中一數學!!20點20點!!!最緊要快
2008-10-15 4:03 am
回答 (7)
2008-10-15 4:22 am
✔ 最佳答案
2b-6=b+72b-b=7+6
b=13
2p+1=0.4p=9 ????
6m+4m-2=8+5m
15m=10
m=2/3
7+2e=9e-14-6e
7+14=9e-6e-2e
21=e
5(m-1)=3-7
5m-5=-4
5m=1
m=1/5
5-4(3-2)=-20???? no a,b,c......
5(+4)-6(8+3Y)=-2
20-48-18Y=-2
26=18Y
Y=26/18
Y=13/9
2008-10-15 17:49:02 補充：
leungkinkeung 第二條計到 5 ，咁係一定錯！
0.4 * 5 = 2
仲話自己all correct ！
2008-10-16 1:44 am
1. 2b-6=b+7
2b-b-6=7
b=7+6
b=13
2. 2p+1=0.4=9
唔係一條數黎嫁..
你打咩呀?
3. 6m+4m-2=8+5m
10m-5m-2=8
5m=8+2
m=2
4. 7+2e=9e-14-6e
7+14=9e-6e-2e
e=21
5. 5(m-1)=3-7
5m-5=-4
5m=1
m=1/5
=0.2
6. 5-4(3-2)=-20
冇得計．．．
7. 5(+4)-6(8+3y=-2
20-48-18y=-2
-28-18y=-2
-18y=26
y=26/18
y=13/9
2b-b-6=7
b=7+6
b=13
2. 2p+1=0.4=9
唔係一條數黎嫁..
你打咩呀?
3. 6m+4m-2=8+5m
10m-5m-2=8
5m=8+2
m=2
4. 7+2e=9e-14-6e
7+14=9e-6e-2e
e=21
5. 5(m-1)=3-7
5m-5=-4
5m=1
m=1/5
=0.2
6. 5-4(3-2)=-20
冇得計．．．
7. 5(+4)-6(8+3y=-2
20-48-18y=-2
-28-18y=-2
-18y=26
y=26/18
y=13/9
參考: 自己計～～
2008-10-15 9:09 pm
2B-6=B+7
2B-B=7+6
B=13
唔明第二題 可以再詳細D
6M+4M-2=8+5M
10M-5M=8+2
5M=10
M=2
7+2E=9E-14-6E
2E-9E+6E=-14+7
-E=-7
E=7
5(M-1)=3-7
5M-5=-4
5M=1
M=1/5
5-4(3-2)=-20-----無代數,計咩
5(4)-6(8+3Y)=-2
20-48-18Y=-2
-26=18Y
Y=18/26
2B-B=7+6
B=13
唔明第二題 可以再詳細D
6M+4M-2=8+5M
10M-5M=8+2
5M=10
M=2
7+2E=9E-14-6E
2E-9E+6E=-14+7
-E=-7
E=7
5(M-1)=3-7
5M-5=-4
5M=1
M=1/5
5-4(3-2)=-20-----無代數,計咩
5(4)-6(8+3Y)=-2
20-48-18Y=-2
-26=18Y
Y=18/26
2008-10-15 6:33 am
2b-6=b+7
b=13
2p+1=0.4p=9
P=2
6m+4m-2=8+5m
m=2
7+2e=9e-14-6e
e=21
5(m-1)=3-7
5m-5=-4
m=1/5
5-4(3-2)=-20
???
5(+4)-6(8+3Y)=-2
20-48-18Y=-2
b=13
2p+1=0.4p=9
P=2
6m+4m-2=8+5m
m=2
7+2e=9e-14-6e
e=21
5(m-1)=3-7
5m-5=-4
m=1/5
5-4(3-2)=-20
???
5(+4)-6(8+3Y)=-2
20-48-18Y=-2
2008-10-15 4:43 am
b=13
p=5
m=2
e=21
m=0.2
5-4(3-2)=-20( 可能條問題出錯,因為冇可能冇unknow)
Y=8 2/3
p=5
m=2
e=21
m=0.2
5-4(3-2)=-20( 可能條問題出錯,因為冇可能冇unknow)
Y=8 2/3
2008-10-15 4:33 am
b=13
p=5
m=2
e=21
m=0.2
5-4(3-2)=-20
Y=8+2/3
p=5
m=2
e=21
m=0.2
5-4(3-2)=-20
Y=8+2/3
2008-10-15 4:21 am
b=13
p=5
m=2
e=21
m=0.2
5-4(3-2)=-20(no answer)
Y=8+2/3
2008-10-14 20:24:13 補充：
ansonlee's some answers are wrong. mine is correct for sure. Hope it can help u
2008-10-14 20:38:52 補充：
please don't copy, I calculate by myself
p=5
m=2
e=21
m=0.2
5-4(3-2)=-20(no answer)
Y=8+2/3
2008-10-14 20:24:13 補充：
ansonlee's some answers are wrong. mine is correct for sure. Hope it can help u
2008-10-14 20:38:52 補充：
please don't copy, I calculate by myself
參考: myself
收錄日期: 2021-04-13 16:09:40
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20081014000051KK01656