Respostas

2014-07-15T16:25:20-03:00
5n + n = 78
6n = 78
n = 78/6
n = 13 -> motos
Carros = 5n = 5*13 = 65
2014-07-15T16:27:47-03:00
Sao 20 motos no estacionemento.