2*x=2/3-1/4x2*(2*x)=2/3-1/岁槐4(2/3-1/4x)=2/3-1/6+1/16x=1/2+1/16x1*x=1/3-1/余则4x所以1/2+1/16x=1/乎毁友3-1/4x5/16x=-1/6x=-8/15
右边=1*x =1/3-1/4x2*x=1/6-1/锋纤4x右边=2*(2*x) =1/6-1/散基笑[4(1/6-1/4x)] =1/6-3x/(2x-3)左冲含边=右边得x=