math既問題

2008-07-17 3:41 am
2/3(x+1)-5/6 = (-1/3)(x-2)

[hint:multiply both sides of the equation by 6]

點計

教吓我點計??

回答 (2)

2008-07-17 6:05 am
2/3(x+1)-5/6 = (-1/3)(x-2)
2/3(x+1)-5/6 = 2/3
2/3(x+1)=9/6
12=27(X+1)(交叉相乘)
12=27X+27
-15=27X
-5/9=X
即X=-5/9
參考: 自己~
2008-07-17 5:24 am
To Yahoo!知識+名人 - KP:
你試下將你計出黎的答案代番算式道,好似有小小問題??
我唔想同你鬧,已刪除了回答,發問者可參即我的答案:
http://s248.photobucket.com/albums/gg191/ncy_0916/?action=view¤t=f1maths-1.jpg

2008-07-23 12:36:32 補充:
原本只是誤會而已...

2008-07-23 12:38:06 補充:
原來只是個誤會而已......


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