2X+1>3X-3 X<4x-1/x-3≤1/2移项通分 2(x-1)/2(x-3)-(X-3)/2(x-3)≤0(x+1)/2(x-3)≤02(x+1)(x-3)≤0(x+1)(x-3)≤0-1≤x≤3综上-1≤x≤3
x<=9/4
x大于等于-1小于3
X<4