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<p>#1 中4數學問題<br /><small>已知ｘ和ｙ均為實數,求ｘ和ｙ的值<br />
ｘ+２ｙ-（ｘ-２ｙ）ｉ=７+ｉ<br />
 <br />
 <br />
 <br />
 <br />
我完全唔識解</small><br />
10/18 11:04<br />
76867300<br /></p>
<p>#2 <br /><small>(x+2y)(1-i)=7+i<br />
UM..<br />
嘛 我還是中3</small><br />
10/18 11:22<br />
Zerco<br /></p>
<p>#3 <br /><small>[quote]原帖由 [i]76867300[/i] 於 2009-10-18 11:04 發表<br />
已知ｘ和ｙ均為實數,求ｘ和ｙ的值<br />
ｘ+２ｙ-（ｘ-２ｙ）ｉ=７+ｉ<br />
 <br />
 <br />
 <br />
 <br />
我完全唔識解 [/quote]<br />
x+2y=7<br />
2y-x=1</small><br />
10/18 12:53<br />
chinlap<br /></p>
<p>#4 <br /><small>..</small><br />
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