Bonjour, il faut que j'effectue les calculs suivants mais je n'y arrive pas :
B = -8 + 11 + (+2)
C = -9 + (-8) + 3 - (-2)
E = (3 - 5) + (1 - 4 + 6) - (-2 + 9)
F = 2 - (5 + 7 - 3) - 9 - (3+6)

Merci d'avance
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