{[(x/5+1)/4-6]/3+x}/2=1一层层剥！[(x/5+1)/4-6]/3+x=2[(x/5+1)/4-6]/3=2-x(x/5+1)/4-6=6-3x(x/5+1)/4=12-3xx/5+1=48-12xx/5=47-12xx=235-60x61x=235x=235/61
X=235/61
x=5/2
