方程式 help~help

2007-10-09 1:52 am

3份之1=9份之5-F
1=2份之1+3份之G

c=2份之1c=3
列式

回答 (5)

2007-10-09 2:05 am

✔ 最佳答案

1. 1/3=5f/9
1*9=3*5f
9=15f
f=9/15
f=3/5
2. 1=1/2+g/3
1=3/6+2g/6
1=3+2g/6
1*6=3+2g
3=2g
g=1.5

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2007-10-09 2:24 am

3\1=9\5F
1=2\1+3\G
c=2\c=3

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2007-10-09 2:01 am

3.C=3

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2007-10-09 1:58 am

1:
1/3=5-F/9

1X3/3X3=5-F/9

3/9=5-F/9

3=5-F

F=2

2:

1/2+G/3=1

3/6+2G/6=1

G=1.5

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2007-10-09 1:57 am

1/3 = 5-F / 9
3 = 5-F
F = 2
1= 1/2 + G/3
1/2 = G/3
G = 1.5

第3條唔明你問乜= =

參考: me

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