Bonjour pouvez m'aider ? merci
Calculer les expressions suivantes en mettant toutes les étapes.

A= 15-3*(4-6)
B= (-7)+7*(-3)+5*[-5+(-2)]
C= -4+2*[-3*(5-7)-9]
D= -7+7*(-3)-3
_________
-8*5-3*(-3)
PS: la D c'est une fraction
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