1.经整理,得-3(x-y)=1,x-y=-(1/3)
2.1-2(a+A+2008)+(A+2008-2b)=3a+3b,1-4a-2b-4016+a-b+2008=3(a+b),1-3a-3b-2008=3(a+b),6(a+b)=-2007,a+b=-177.5,ab=2185.5
1.经整理,得-3(x-y)=1,x-y=-(1/3)
2.1-2(a+A+2008)+(A+2008-2b)=3a+3b,1-4a-2b-4016+a-b+2008=3(a+b),1-3a-3b-2008=3(a+b),6(a+b)=-2007,a+b=-177.5,ab=2185.5