1、解方程(x-4)÷3-8=-(x+2)÷2 两边乘6得 2(X-4)-48=-3(X+2) 2X-8-48=-3X-6 (2+3)X=56-6 5X=50 X=10 2、解方程4x-(3a+1)=6x+2a-1 (4-6)X=2a-1+3a+1 -2X=5a X=-5a/2 则-5a/2=10 a=-4 a-a/1=-4+1/4=-15/4