SVP AIDEZ MOI POUR CE EXERCICE:

Bonjour,

A = 11 / (2 - 5)

A = 11/- 3

A = - 11/3

B = (- 6 - 3) / (2 + 7)

B = - 9/9

B = - 1

C = [- 2 - (- 4)] / (6 - 7)

C = (- 2 + 4) / - 1

C = 2/- 1

C = - 2.