Jawabanmu

2014-02-27T14:36:52+07:00
(1+2+x+y+5)/5 =2009
(1+2+x+y+5) = (2009)5
x+y+8 = 10045
x+y = 10037

maka, 
x+y/11 = 10037/11= 912 sisa 5

jawabannya, bersisa 5
2014-02-27T17:35:16+07:00