题目对不？
方程两边同时×10
2x/5+(x-1)/2=3（x-1）/2-8x/5(2x+8x)/5+{(x-1)-3(x-1)}/2=02x-(x-1)=0x+1=0x=-1
2/5X+X/2-1=3/2（X-1）-8/5X4X+5X-10=15X-15-16X9X+X=10-1510X=-5X=-1/2
