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e.g.

n - 8 = 27
n - 8 + 8 = 27 + 8
n = 35

checking :
n - 8
= 35 - 8
= 27


1.
w/5 = 7

checking :


2.
4s = 64

checking :

2007-08-09 15:31:54 · 1 個解答 · 發問者 S.S. 7 in 教育與參考 小學及中學教育

1 個解答

1.
w/5 = 7
w/5X5=7X5
w=35

checking :
w/5
=35/5
=7


2.
4s = 64
4s/4=64/4
s=16

checking :
4s
=4X16
=64

2007-08-09 15:37:07 · answer #1 · answered by venus_manyan 2 · 0 0

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