设A={(x,y)}|y=-4x+7},B={(x,y)}|y=5x-2},求A∩B?

设A={(x,y)/x+y 设A={（x,y)│x+y 设集合A={(X,Y)|X+Y 设集合A={(x,y)||x|+|y| 设A={（x,y)│x+y 设A={（x,y)│x+y 设集合A={(x,y) | |x|+|y| 设集合A={(x,y) | |x|+|y| 1.设A={(x,y)/4x+y=6} B={(x,y)/3x+2y=7} 则A∩B等于多少 设A={(x,y)}|y=-4x+7},B={(x,y)}|y=5x-2},求A∩B? 设M={(x,y)||x|+|y| 设x,y满足约束条件x+y>=1,x-y>=-1,2x-y=7*(a^3b^4)^(1/7) x+a%3*(int)(x+y)%2/4 设x=2.5 a=7 y=4.7 设集合A={(x,y)/0 设集合A={(x,y)/0 设x,y满足约束条件x+y>=a,x-y 设集合A=｛y/y=x²-2x+3,x∈R｝,B=｛y/y=-x²+2x+10,x∈R｝,求A∩B设集合A=｛（x,y)/y=x+1,x∈R｝,B=｛（x,y)/y=-x²+2x+3/4,x∈R｝,求A∩B 设x,y满足约束条件{x>=0,y>=x,4x+3y