5(x-1)=3x-7？

用戶2779

2007-02-22 7:25 pm

5(x-1)=3x-7

回答 (3)

k0n

2007-02-22 7:28 pm

✔ 最佳答案

5(x-1) = 3x-7
5x-5 = 3x-7
5x-3x =- 7+5
2x = -2
x = -1

參考: me

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Lam

2007-02-23 12:02 am

5x-5=3x-7
5x-3x=5-7
2x=-2
x=-2/2
x=-1

參考: 自己

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詩慧

2007-02-22 7:39 pm

5x-5=3x-7
5x-3x=-7+5
2x=-2
x=-1

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