Réponse : B = (-3+9)-(4-11)-(-6-5)
= 6-(-7)-(-11)
= 13-(-11)
= 24
C = (6-7)-(12-3)-9
= -1-9-9
= -19
D = -(-12+1)-(-6+2)-(13-14)
= -(-11)-(-4)-(-1)
= 11+4+1
= 16
Explications étape par étape :
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Réponse : B = (-3+9)-(4-11)-(-6-5)
= 6-(-7)-(-11)
= 13-(-11)
= 24
C = (6-7)-(12-3)-9
= -1-9-9
= -19
D = -(-12+1)-(-6+2)-(13-14)
= -(-11)-(-4)-(-1)
= 11+4+1
= 16
Explications étape par étape :