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29699#
發表於 2013-11-26 04:36 PM
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準備,分解要好長...
A - B = 38 , A = 38 + B
A + B = 76
(38 + B) + B = 76
38 + 2B = 76
2B = 76 - 38
2B = 38
B = 38 ÷ 2
B = 19
A = 38 + B
A = 38 + 19
A = 57
So, A ÷ B = 57÷19 = 3 ...
lckiong 發表於 2013-11-26 04:31 PM  ...厉害
時間 | 支出 | 收入 | 操作 | | lckiong | 7 秒前 | TVB 588888 元 | | 積分轉出 |
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