Réponses

Meilleure réponse !
  • Utilisateur Brainly
2014-06-06T14:32:46+02:00
[4-(-5)]-[(-3)+(-8)] =
(4+5)-(-3-8) =
9-(-11)=
9+11 =
20
2014-06-06T14:42:53+02:00
(4-(-5)) - ((-3) + (-8) = (4+5) -(-11) = 9 +11 = 20