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Hadrien  =  x

Romuald  = x + 3

Samir  =  2 x

Morgan  = x - 1.5

x + x + 3 + 2 x + x - 1 .5 = 36.5

5 x = 36.5 - 3 + 1.5

5 x =  35

x = 7

Hadrien  = 7 € / Romuald  = 10 / Samir  = 14 / Morgan  = 5.5

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