X-7/4-5X+8/3=8/32X-5X=1/4+7/4-8/3-4X=2-8/3-4X=-2/3X=1/6(2X+1)-(X+5)-2(X-3/2)=3/4X+12X+1-X-5-2X+3=3X/4+12X-2X-3X/4=1-1+5-3-3X/4=2-3X=8X=-8/3
看不懂啊