Mathematics In Action 3A中三數急救!!!!

2006-11-21 9:17 am
5-n -3-(-6)
------- = --------        n=?
-1+2n -2-(-5)


如果有既話我想問p.151 Ex.4A ( 3.4.12)
p.131 EX.3C ( 17a,b )
and Workbook p.74-77, 67(5), 62-64, 60(5), 55(b),56,57
幫得幾多得幾多呀...幫一條或耆小小都好呀.....為左分又好,幫下人又好
    thx.........

回答 (1)

2006-11-21 10:35 am
✔ 最佳答案
你係想問5-n-3-(-6)= -1+2n-2-(-5)???
如果係,答案如下:
5-n-3-(-6)= -1+2n-2-(-5)
5-n-3+6= -1+2n-2+5
8-n=2n+2
6=3n
n=2


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