5x+7>3(x+1) 解得x>-2(1/2x)-1≤1-(3/2x) 解得x<=1∴-2
5x-1>3(x+1)5x-1>3x+32x>4x>2x/2-1≤7-3x/2x/2+3x/2≤7+12x≤8x≤4所以解集为:2<x≤4