1-2(a+ab)+(ab-2b)=3A
1-2a-2ab+ab-2b=3A
1-2(a+b)-ab=3A
1-2A-(A+2008)=3A
1-2A-A-2008=3A
6A=-2007
A=-334.5
a+b=A=-334.5
ab=A+2008=1673.5
1-2(a+ab)+(ab-2b)=3A
1-2a-2ab+ab-2b=3A
1-2(a+b)-ab=3A
1-2A-(A+2008)=3A
1-2A-A-2008=3A
6A=-2007
A=-334.5
a+b=A=-334.5
ab=A+2008=1673.5