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LindaLicornes
@LindaLicornes
January 2021
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bonjour, je n'arrive pas à faire cet exercice, merci d'avance de bien vouloir m'aider
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Geijutsu
Verified answer
Bonjour,
F = (-8)-(-9)+(-3)-(+7)+(+5) = -8-(-9)+(-3)-(+7)+(+5) = -8+9+(-3)-(+7)+(+5) = 1+(-3)-(+7)+(+5) = 1-3-(+7)+(+5) = -2-(+7)+(+5) = -2-7+(+5) = -9+(+5) = -9+5 = -4
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LindaLicornes
merci beaucoup
telephone16
F = (-8) - (-9) + (-3) - (+7) + (+5) méthode "suppression " des parenthèses
-8 +9 -3 -7 +5 tu regroupes les positifs et les négatifs entre-eux, puis tu calcules
+9 +5 = +14
-8 -3 -7 = -18 +14 -18 = -4
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Thanks 0
LindaLicornes
merciii
telephone16
bonne journée !
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Bonjour, merci de bien vouloir me donner votre aide, car je cale sur ces deux exercices de mon dm. Merci d'avance.
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Bonjour,F = (-8)-(-9)+(-3)-(+7)+(+5) = -8-(-9)+(-3)-(+7)+(+5) = -8+9+(-3)-(+7)+(+5) = 1+(-3)-(+7)+(+5) = 1-3-(+7)+(+5) = -2-(+7)+(+5) = -2-7+(+5) = -9+(+5) = -9+5 = -4
-8 +9 -3 -7 +5 tu regroupes les positifs et les négatifs entre-eux, puis tu calcules
+9 +5 = +14
-8 -3 -7 = -18 +14 -18 = -4