2[x/3-(2/3X-1/2)]=3(x+1)/42[x/3-2/3X+1/2]=(3x+3)/42x/3-4x/3+1=3x/4+3/4都乘以12得,8x-16x+12=9x+9移项得,8x-16x-9x=9-12合并同类项得,-17x=-3系数化1得,x=3/17
方程两边同时乘以4,去括号。解方程的:x=3/17