1/3*(x+1/2)=(x-1/8)*2
1/3x+1/3*1/2=2x-1/8*2
移项
2x-1/3x=1/3*1/2+1/8*2
(2-1/3)x=1/6+1/4
5/3x=5/12
x=5/12÷5/3
x=1/4