1. y+y-1 = 19
2. 4y-6 = 2y+5
3. 2x = 45-x
4. 6x5+2y
5. 2[ 6+(4x-5) ] = 30
要有步驟..
唔該哂..
趕快答..方程問題~
2007-12-05 3:38 am
回答 (3)
2007-12-05 3:47 am
✔ 最佳答案
1. y+y-1 = 192y = 20
y = 10
2. 4y-6 = 2y+5
2y = 11
y = 5.5
3. 2x = 45-x
3x = 45
x = 15
4. 你的問題好像有點問題
5. 2[ 6+(4x-5) ] = 30
6+(4x-5) = 15
6+4x-5 = 15
4x =14
x = 3.5
2007-12-05 5:18 am
1.
y+y-1=19
2y-1=19
2y=20
y=10
2.
4y-6=2y+5
4y=2y+11
2y=11
y=5.5
3.
2x=45-x
3x=45
x=15
4.
解唔到依題方程
5.
2[6+(4x-5)]=30
12+8x-10=30
12+8x=40
8x=28
x=3.5
y+y-1=19
2y-1=19
2y=20
y=10
2.
4y-6=2y+5
4y=2y+11
2y=11
y=5.5
3.
2x=45-x
3x=45
x=15
4.
解唔到依題方程
5.
2[6+(4x-5)]=30
12+8x-10=30
12+8x=40
8x=28
x=3.5
參考: me
2007-12-05 3:52 am
1. y+y-1 = 19
2y-1+1=19+1
2y=20
2y/2=20/2
y=10
2. 4y-6 = 2y+5
4y-2y=5+6
2y=11
y=5.5
3. 2x = 45-x
3x=45
3x/3=45/3
x=15
4. 6x5+2y
你依題都唔係方程...
所以解唔到...
5. 2[ 6+(4x-5) ] = 30
6+(4x-5)=15
4x-5=9
4x=14
x=3.5
2y-1+1=19+1
2y=20
2y/2=20/2
y=10
2. 4y-6 = 2y+5
4y-2y=5+6
2y=11
y=5.5
3. 2x = 45-x
3x=45
3x/3=45/3
x=15
4. 6x5+2y
你依題都唔係方程...
所以解唔到...
5. 2[ 6+(4x-5) ] = 30
6+(4x-5)=15
4x-5=9
4x=14
x=3.5
參考: me
收錄日期: 2021-04-13 14:38:50
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20071204000051KK02676