解方程:①1/2x -1=2x-1/3;②3(x-2)=2-5(x-2)③1-m/2 - 3-3m/4=1④3/2【4(x-1/3-2/3)】=2x

问题描述:

解方程:①1/2x -1=2x-1/3;②3(x-2)=2-5(x-2)③1-m/2 - 3-3m/4=1④3/2【4(x-1/3-2/3)】=2x

①1/2x -1=2x-1/3 1/2x=2x+2/3 3x=12x+4 -9x=4 x=-4/9②3(x-2)=2-5(x-2) (x-2)=0 x=2③1-m/2 - 3-3m/4=1 -2-5m/4=1 -5m/4=3 -5m=12 m=-5/12④3/2【4(x-1/3-2/3)】=2x 【4(x-1/3-2/3)】=4x/3 (x-1/3-2/3)=x/3 x-...