Réponses

2014-09-07T16:42:57+02:00
Bonjour

A = -6 +5 +3 -4 = +8 - 10 = -2
B = +7 -17 +5 -9 = + 12 - 26 = - 14 
  • Utilisateur Brainly
2014-09-07T16:46:03+02:00
A= (-6) - ( -5) + (+3) - (+4)
A= - 6 + 5 + 3 - 4
A= 5 + 3 - 6 - 4
A= 8 - 10
A= - 2

B= (+7) + (-17) -(-5) - (+9)
B= 7 - 17 + 5 - 9
B= 7 + 5 - 17 - 9
B= 12 - 26
B= - 14