3/2[2(x-1/2)+2/3]=5x3/桐此宴扒码2[2x-1+2/3]=5x3x-3/局银2+1=5x3x-5x=3/2-1-2x=1/2x=-1/4
3(x-1/2)+1=5x-2x=1/2x=-1/4
3/2[2(x-1/2)+2/3]=5x3/2(x-1+2/3)=5x3/2(x-1/握升3)=5x3/2x-1/2=5x3/段芦老2x-5x=1/哗启2-7/2x=1/2x=-1/7
