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[請問] 數學題 要怎麼解？
Oct 8th 2014, 13:34, by cat1022

作者cat1022 (我們的愛情逃走了)

站內ask

標題[請問] 數學題 要怎麼解？

時間Wed Oct 8 13:33:59 2014

看似很簡單 可是我解不出來QQ 0.4=(X-20)/(1000-X) 經簡化 應該是 420=0.4X+X 沒錯吧？ 只有一個未知X 應該是解的出來阿？ 可是我卡好久了～～Q_Q -- ※ 發信站: 批踢踢實業坊(ptt.cc), 來自: 220.139.97.32 ※ 文章網址: http://www.ptt.cc/bbs/ask/M.1412746441.A.7E7.html

推 snsdakb48: 你不是解出來了嗎… 10/08 13:37

→ cat1022: 我是要知道X等於多少噎？ 10/08 13:38

→ snsdakb48: 420=(0.4+1)X ....................... 10/08 13:39

推 hxhjerry: 除一下不就好了嗎？ 10/08 13:39

→ cat1022: 呀逼～我會了 謝謝樓上的 10/08 13:40

推 KawasumiMai: 不就420=1.4x.... 10/08 13:51

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