5x-2>3(x+1) ==> x>3/2第二个不等式应该是？(1/2)x-1<=7-(3/2)x ==> x<=43/2
由5x-2>3(x+1）得x>5/2由1/2x-1<=7-3/2x得x<=4∴5/2∴正整数解为x=3,4
由5x-2>3x+3得x>5/2由1/2x-1<=7-3/2x得x<=4所以5/2正整数解为x=3,4
