已知(2x-4)2+|x+2y-8|=0,则(x-y)2004=______.
已知(x+y+2)2+|2x-3y-1|=0,则x+y=______.
已知2x+3y=5,则6x-4y-2(x-5y)=______.
已知(x-3)2+|2x-3y+6|=0,则x=______,y=______.
已知|x-3|+(y+2)2=0,则x+y=______.
已知(x-1)2+4|y-6|=0,则5x+6y-4x-8y=______.
已知集合M={(x,y)|x+y=2},N={(x,y)|x-y=4},则M∩N等于______.
已知y=x-1,则(x-y)2+(y-x)+1的值为______.
已知|x+3|+(x+2y-1)2=0,则x+y=______.
若|3x-y-7|+(5x+2y-8)2=0,则x-y=______.
已知:(2x+3y-4)2+|x+3y-7|=0,则xy=______.
已知(3x+2y-5)2与|5x+3y-8|互为相反数,则x=______,y=______.
已知x、y是实数,且满足(x+4)2+|y-1|=0,则x+y的值是______.