Respostas

2014-06-22T15:00:58-03:00
N+2n=15
3n=15
n=15/3
n=5
1 5 1
valeu brigada nao estava entendedo essa
2014-06-22T15:02:27-03:00
X + 2.X=15
3x=15
x=3/15
x=5
1 5 1