3X+2Y=m+1.(1)
4X+3Y=m-1 .(2)
(2)-(1):
x+y=-2.(3)
(3)代入(1)
3X+2Y=x+2(x+y)=x-4=m+1
x=5+m
y=-7-m
x>y
5+m>-7-m
m>-6