Respuestas

2013-07-07T22:00:13+02:00
3-[4-(-2)-]-{9-[5+4]} =
3-[4+2]-{9-[9]}=
3-6-{0}= -3.

  • Usuario de Brainly
2013-07-07T22:03:16+02:00
3-[4-(5-7)]- {9-[5-(-4)] }
3-[4-(-2)]- {9-[5+4)] }
3-[4+2)]- {9-[9] }
3-(6)-(9-9)
3-6-0
solucion : -3