1/2(1/3(咐悉1/4(1/5x+1)+2)+3)=41/3(1/4(1/5x+1)+2)+3=81/3(1/4(仿拍1/5x+1)+2)=51/4(1/5x+1)+2=151/4(备简羡1/5x+1)=131/5x+1=521/5x=51x= 255
1/6(1/4(1/5x+1)+2)+3/2-4=01/昌改24(1/5x+1)-13/耐敬判6=01/稿伏5x+1=52x=255