Respostas

2014-08-19T12:59:40-03:00
Carros = C
Motos = M
C=5*M
C+M=78
Substituindo C
5M+M=78
6M=78
M=78/6
M=13 motos
2 1 2
2014-08-19T13:17:01-03:00
C = carro
M = moto
C + M = 78
C = 5M

5M +M = 78
6M = 78
M = 78/6
M = 13

1 1 1