(2m-1)x-(m-3)y-(m-11)=0
2xm-x-ym+3y-m+11=0
(2x-y-1)m+(-x+3y+11)=0
2x-y-1=0
-x+3y+11=0
得x=-8/5,y=-21/5
此定点坐标为(-8/5,-21/5)