Respostas

2013-12-02T10:38:29-02:00
{(-18)+[(-2).(+8-5)]/6)}
{(-18)+[-2.3]/6)}
{(-18)+-6/6)}
{-18+0}
-18
1 5 1
2013-12-02T12:02:21-02:00
{(- 18) + [(- 2) . (+ 8 - 5)] /6)} =
{(- 18) + [(- 2) . 3] /6} =
{(- 18) + [- 6] /6} =
{(- 18) + [- 1]} =
- 18 - 1 =
- 19