2- 6分之x+5=x- 3分之x-1
12-(x+5)=12x-4(x-1)
12-x-5=12x-4x+4
9x=3
x=1/3
0.03分之0.1-0.2x-1=0.4分之0.7-x
10-20x/3-1=7-10x/4
7-20x/3=7-10x/4
28-80x=21-30x
50x=7
x=7/50