4【2x-1】-【10x+1】=3
8x-4-10x-1=3
10x-8x=-4-1-3
2x=-8
x=-4
(x+3)\4-(2-3x)\8=5\2两边乘8
2x+6-2+3x=20
3x+2x=20-6+2
5x=16
x=3.2