aidé moi svp C= (-3)-[(-5)+(+3)]+[(+7)+(-11)] D= [(-9)-(+8)]-[(+5)-(+9)]-(+3)
Mathématiques
dilara78200
Question
aidé moi svp C= (-3)-[(-5)+(+3)]+[(+7)+(-11)] D= [(-9)-(+8)]-[(+5)-(+9)]-(+3)
1 Réponse
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1. Réponse maudmarine
C= (-3)-[(-5)+(+3)]+[(+7)+(-11)]
C = - 3 - [(- 2) + (- 4)]
C = - 3 - (- 6)
C = - 3 + 6
C = 3
D= [(-9)-(+8)]-[(+5)-(+9)]-(+3)
D = [- 9 - 8] - (5 - 9) - 3
D = - 17 - (- 4) - 3
D = -17 + 4 - 3
D = - 20 + 4
D = - 16