timitemohamed65 timitemohamed65

18-03-2024
Mathematics

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Exercice 3: Karen veut acheter des DVD qui coûtent tous le même prix. Elle remarque que si elle en achète deux, il lui restera 20€, mais il lui manque 10€ pour en acheter quatre. On désigne par x le prix d'un DVD. Quel est le prix d'un DVD?

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