Calcula: 7 1 de x = 36 x = Calcula: 5 3 de x = 159 x = Calcula: 9 7 de x = 448 x = Calcula: 6 5 de x = 160 x = Calcula: 6 1 de x = 81 x = Calcula: 7 3 de x = 249 x = Calcula: 3 2 de x = 234 x = Calcula: 7 2 de x = 118 x = Calcula: 8 5 de x = 405 x = Calcula: 13 6 de x = 114 x = |