一元一次不等式 - 拼圖
By Regina
at 2008-06-05T21:22
at 2008-06-05T21:22
Table of Contents
│x-5│< 5
這個方程式的解是 0 < x < 10
老師說是這樣解:
先把│x-5│< 5變成 -5 < x-5 < 5
然後再化簡
0 < x < 10
↑↑↑↑↑
答案......
但是老師沒跟我們說過程
所以我想問的是過程(就是│x-5│< 5怎麼變-5 < x-5 < 5的)
謝謝
--
這個方程式的解是 0 < x < 10
老師說是這樣解:
先把│x-5│< 5變成 -5 < x-5 < 5
然後再化簡
0 < x < 10
↑↑↑↑↑
答案......
但是老師沒跟我們說過程
所以我想問的是過程(就是│x-5│< 5怎麼變-5 < x-5 < 5的)
謝謝
--
Tags:
拼圖
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