题目内容
解不等式:
(1)5x+15>4x-13
(2)1-
≤
.
(1)5x+15>4x-13
(2)1-
| x-2 |
| 2 |
| 1+4x |
| 3 |
(1)5x+15>4x-13,
5x-4x>-13-15,
x>-28.
(2)1-
≤
,
6-3(x-2)≤2(1+4x)
6-3x+6≤2+8x,
-3x-8x≤2-6-6,
-11x≤-10,
x≥
.
5x-4x>-13-15,
x>-28.
(2)1-
| x-2 |
| 2 |
| 1+4x |
| 3 |
6-3(x-2)≤2(1+4x)
6-3x+6≤2+8x,
-3x-8x≤2-6-6,
-11x≤-10,
x≥
| 10 |
| 11 |
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