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Arlecino [84]
3 years ago
12

Soit trois nombres consécutifs. Lorsque l’on soustrait le double du deuxième nombre du quadruple du

Mathematics
1 answer:
irina [24]3 years ago
4 0

Answer:

Les trois nombres sont 5, 6 et 7.

Step-by-step explanation:

Soit x le premier nombre.

x + 1 sera le second et x + 2 sera le troisième.

On pose l'équation :

2x + 3(x + 1) = 4(x + 2)

2x + 3x + 3 = 4x + 8

5x - 4x = 8 - 3

x = 5

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