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regisregb
@regisregb
January 2021
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bonsoir a tous , j'ai besoin de votre aide pour les 2 exercices de maths. je vous remercie à tous , bonne soirée !
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MichaelS
Verified answer
Bonjour,
Rappel :
+(+x) = x
+(-x) = -x
-(+x) = -x
-(-x) = x
exemple pour le premier :
(+3) + (+12) = 3 + 12 = 15
(+7) + (-11) = 7 - 11 = -4
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regisregb
MERCI INFINIMENT et merci pour le petit rappel
regisregb
je remercie aussi Kathir93
RiseOfKathir
de rien
RiseOfKathir
Verified answer
Bonsoir,
Exercice 2
a) 3+12 b)7-11 c)-5+17 d) -8-7
= 15 =-3 =12 =-15
Exercice 3
a) 17-9 b) 11+19 c) -8-6 d) -13+9
=8 =30 =-14 =-4
J'espère t'avoir aidé
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Verified answer
Bonjour,Rappel :
+(+x) = x
+(-x) = -x
-(+x) = -x
-(-x) = x
exemple pour le premier :
(+3) + (+12) = 3 + 12 = 15
(+7) + (-11) = 7 - 11 = -4
Verified answer
Bonsoir,Exercice 2
a) 3+12 b)7-11 c)-5+17 d) -8-7
= 15 =-3 =12 =-15
Exercice 3
a) 17-9 b) 11+19 c) -8-6 d) -13+9
=8 =30 =-14 =-4
J'espère t'avoir aidé