x-(3-1)≤x+2解不等式!x-5/2+1>x-3 3/1x-2<1-5/1x x-(3x-1)≤x+2
问题描述:
x-(3-1)≤x+2解不等式!x-5/2+1>x-3 3/1x-2<1-5/1x x-(3x-1)≤x+2
答
x-(3-1)≤x+2
x - 2 ≤ x+2
x 为一切实数.
x-5/2+1>x-3
x-3/2>x-3
x 为一切实数.
x/3 - 2 <1- x/5
8x/15 8x x 这题的题目没写清楚?
x-(3x-1)≤x+2
x-3x +1 ≤ x +2
- x ≤ 1
x ≥ -1