去括号,得 1/2(x-1/2x+1/2)=2/3x-2/3.
1/2x-1/4x+1/4=2/3x-2/3.
去分母,得 6x-3x+3=8x-8.
移项,得 6x-3x-8x=-8-3.
合并同类项,得 -5x=-11.
系数化为1,得 x=11/5.
1/2 * [x - 1/2(x-1)]=2/3 * (x-1)
1/2 * (x/2 + 1/2)=2x/3 - 2/3
x/4 + 1/4 = 2x/3 -2/3
1/4 + 2/3 = 2x/3 - x/4
11/12 = 5x/12
x=11/5