2) En retranchant 71 au triple d'un nombre, on trouve 109 Quel est ce nombre ?​

By: USER8274
27 Agustus 2025 mathematiques 5 minutes
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Question

Grade: Education Subject: mathematiques
2) En retranchant 71 au triple d'un nombre, on trouve 109 Quel est ce nombre ?​
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Answer (79)

Best Answer
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On considère 'x' le nombre inconnu.

3x - 71 = 109

3x = 109 +71

3x = 180

x = 180 / 3 = 60

Vérification : 3*60 -71 = 180 - 71 = 109

Answered on 27 Agustus 2025

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