(x-1)/3-(y+2)/4=0...........(1)
(x-3)/2-(y-1)/3=1/6........(2)
由(1)得
4(x-1)=3(y+2)
4x-4=3y+6
4x=3y+10
x=(3y+10)/4
代入(2)得
3(x-3)-2(y-1)=1
3( (3y+10)/4 -3 ) -2(y-1)=1
3( (3y+10) -12 ) -8(y-1)=4
9y-6 -8y+8=4
y+2=4
y=2
x=(3y+10)/4=(6+10)/4=4
解得
x=4
y=2
x=4 y=2