Respuestas

2013-08-29T19:45:38+02:00
- 8 m - (3 m + 6) = 5
- 8 m - 3 m - 6 = 5
- 11 m - 6 = 5
- 11 m = 5 + 6
- 11 m = 11
m = 11 / (-11)
m = - 1