我有一條唔係好識做~plx help!我計完又計都計唔到11這個答案~又唔知錯咩~

2007-05-27 6:40 am

4(x-1)=3(x+3)-(x-9)

希望可以比成個步驟我~我只想得個明白~記住要詳細wo~

回答 (6)

2007-05-27 6:44 am

✔ 最佳答案

4(x-1)=3(x+3)-(x-9)
4x-4=3x+9-x+9
4x-3x+x=9+9+4
2x=22
x=11

參考: me

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2007-05-27 7:21 am

4(x-1)=3(x+3)-(x-9)
4x - 4 = 3x + 9 - x + 9
4x - 4 = 2x + 18
4x - 2x = 18 + 4
2x = 22
x = 11

Hope can help u ^^

參考: me

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2007-05-27 7:03 am

4(x-1)=3(x+3)-(x-9)
4x-4=3x+9-x+9
4x-3x+x=9+4+9
2x=22
x=11
is so easy

參考: myself

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2007-05-27 6:52 am

4(x-1) = 3(x+3)-(x-9)

4x-4 = 3x+9-x+9

4x-4 = 3x-x+9+9

4x-4 = 2x+18

4x-4+4=2x+18+4

4x=2x+22

2x=22

x=11

參考: me

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2007-05-27 6:45 am

4(x-1)=3(x+3)-(x-9)
4x-4=3x+9-x+9
4x-4=2x=18
4x-2x=18+4
2X=22
x=11

參考: me

👍 0 👎 0

2007-05-27 6:44 am

4(x-1)=3(x+3)-(x-9)

4x-4 = 3x+9-x+9

4x-3x+x=9+9+4

2x=22

x=11

👍 0 👎 0