3(2x-1)/(x-2)≤4 ①
1/2+3x>2x ②
由①得
(6x-3-4x+8)/(x-2)≤0
即,(2x+5)/(x-2)≤0
解得,-5/2≤x-1/2
综上可得,原不等式组的解集为
-1/2