(2x-1)÷3=(x+2)÷4-1解:原式两边同时乘以12得:(2x-1)÷3x12=【(x+2)÷4-1】x12可化为(2x-1)x4=(x+2)x3-12去括号得:8x-4=3x+6-12合并同类项得:5x=10解得:x=2