Respostas

2014-06-15T22:18:13-03:00
Pares ordenados:

(10, 6)
(7, 9)
(5, 11)
((8, 8)
(12, 4)
(14, 2)
(3, 13)
(20, -4)
(-14, 30)
(25, 9)

Espero ter colaborado!!

1 5 1
2014-06-15T22:40:59-03:00
4+12
10+6
8+8
14+2
16+0

pq é asim