Respuestas

2013-08-25T17:39:14+02:00

2(7)1 = 2(3) + 1 = 6 + 1 = 7

9(29)2 = 9(3) + 2 = 27 + 2 = 29

1(x)10 = 1(3) + 10 = 3 + 10 = 13

x = 13