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lolchipie89
@lolchipie89
June 2021
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Pouvez-vous m'aider pour ces deux exercices de maths SVP? URGENT(POUR 20PTS!!!!!)
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zinebmahouhe
A=-7+6-8-4+24+(-3)+(-7)*(-8)
=-7+6-8-4+24-3+56
=-1-8-4+21+56
=-13+21+56
=64
B=(-7+9-13)-(-7-12+3*7-1)+(-15-9)
=-7+9-13-(-7-12+21-1)-15-9
=2-13+7+12-21+1-15-9
=-11+19-20-24
=8-44
=36
C=-(4*(-7))+(-5*(-8))+(6*9)-((-36)+(-9))
=-(-28)+40+54-(-45)
=28+94+45
=167
D) 212-75=137
EX2
y=10
x=-4
xy=-0.27
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lolchipie89
Merci beaucoup à toi ! Tout est juste je pense mais pour l'exercice 1 du A et B c'était : -7 + 6 - 8 - 4 + 24 divisé par (-3)... et le B après ((-36) c'était divisé aussi et non +.
lolchipie89
Désolé pour la qualité !
lolchipie89
A et C pardon
Hooni
Dans l'exercice 1 tu dois en premier calculer les produits et apres effectuer les sommes
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A = -7 + 6 - 8 - 4 + 24 / (-3) + ( -7) x ( -8) B = - ( 4 x (-7)) + ( -5 x (-8)) + ( 6x9) - ((-36) / (-9))
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=-7+6-8-4+24-3+56
=-1-8-4+21+56
=-13+21+56
=64
B=(-7+9-13)-(-7-12+3*7-1)+(-15-9)
=-7+9-13-(-7-12+21-1)-15-9
=2-13+7+12-21+1-15-9
=-11+19-20-24
=8-44
=36
C=-(4*(-7))+(-5*(-8))+(6*9)-((-36)+(-9))
=-(-28)+40+54-(-45)
=28+94+45
=167
D) 212-75=137
EX2
y=10
x=-4
xy=-0.27