Respostas

2013-07-31T00:01:49-03:00
N - 2 = 3
n= 3 +2
n = 5
m + 5 = -2
m= -2 + (-5)
m = -7

conferindo:
(n-2 m+5)= (3, -2)
(5-2  -7+5)= (3, -2)
(3  -2) = (3  -2)
3 2 3