x+y/4=x-1/3 x/3y-2=2
3x+3y=4x-4 6y-4=x
-x+3y=-4 -4=x-6y
x=4+3y
代入得4+3y-6y=-4
-3y=-8
y=8/3
3(X+Y)=4(X-1)然后3x+3y=4X-4然后3X-4X+3y=-4然后,-X+3y=-4 6y-x=4 解得X等=5/4 Y=5/144
题目有点看不懂
4分之(x+y)=3分之(x-1)
(3y-2)分之x=2