Tracer un chema annote pour justifier la reponse.
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peut-on trouver deux entiers tels que leur somme est 108 et leur difference est 23?

Permettez aux deux nombres d'être x et y.

La somme

x + y = 108

La différence

x - y = 23

Nous avons maintenant deux équations, un ensemble d'équations simultanées, résoudre pour x et y.

x + y = 108

x - y = 23

Ajoutez les deux équation ensemble.

2x = 131

x = 65.5

Donc y = 108 - 65.5 = 42.5


Réponse : les deux nombres sont 65.5 et 42.5

 

by Level 11 User (81.5k points)

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