2x-5<=3(x-1)2x-5≤3x-33x-2x≥-5+3x≥-2二分之(x+7)>4xx+7>8x8x-x﹤77x﹤7x﹤1所以-2≤x﹤1
2x-5≤3(x-1)=> x≥-2x/2+7>4x=> x<2∴-2≤x<2
-2<=x<2