Mathematics
Senior High
可以請問除了幾何方法 有沒有其他方法？就是除了畫數線分兩段，有沒有能直接計算的方法
單元1)
759 4902505640100 LP-25545A-MDB (250
7. 解不等式 2x-1<x+4,得x的範圍為
(解)
-X-4 <2(x- =) < x+4.
<2(x)<x+
美丽
301W
1~10路每顾
2
X-4+1
過
70
-3
-X-4<2x-1
X+4
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