2x+1<3x+3 2/3 (x-1)≤1/2(x+1/3)
2x-3x<3-1, 2/3x-2/3≤1/2x+1/6
-x<2, 1/6x≤5/6
x>-2, x≤5
所以-2
2x+1<3x+3
1-3<3x-2x
x>-2
2/3(x-1)≤1/2(x+1/3)
两遍乘6 得 4(x-1)≤3(x+1/3)
4x-4≤3x+1
4x-3x≤1+4
x≤5
解得-2
将一式整理:-2
化简得:x《5
综上可得:-2