Respostas

2014-03-20T00:51:42-03:00
X + x+1 + x+2 = 156
3x = 156 -3
3x = 153
x = 51

51 + 52 +53
4 4 4
2014-03-20T01:02:09-03:00
51,52,53 ....................
3 2 3