Respostas

2013-12-10T19:52:27-02:00
9+5 = 16

diferença de 4 anos. errado
2013-12-10T20:32:26-02:00
L+B = 16 --> B = 16-L
(L+1) = 2.(B+1)
L+1 = 2.(16-L+1)
L+1 = 2.(17-L)
L+1 = 34-2L
L+2L = 34-1
3L = 33
L = 33/3
L = 11

B = 16-L
B = 16-11
B = 5