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lgrondin451
@lgrondin451
May 2022
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Bonjour, j'ai des difficultés à ces exercices de maths. Une indication, un coup de pousse ou bien même les réponses en soi m'aiderait beaucoup. Merci d'avance.
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wattaud
Réponse:a= -15-7+3 = -22+3 = -19b= -15-7*3 = -15-21 = -36c= 3*4-9*6 = 15-9*6 = 15-54 = -39d= 17-7*4+6 = 17-28+6 = -11+6 = -5
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telephone16
Réponse :BonjourExplications étape par étape :Un coup de "pouce" et explications.A = -15 - 7 + 3 aucune difficulté, tu regroupes les négatifs puis le positif.A = - 22 + 3 tu calculesA = - 19B = -15 -7 X 3 la multiplication est prioritaireB = -15 - 21B = -36C = 3 X 4 -9 X 6C = 12 - 54C = -42D = 17 - 7 X 4 + 6D = 17 - 28 + 6D = 17 + 6 - 28D = 23 - 28D = -5
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