album: x
film: x+1,50
8x + 6(x+1,50) = 37
8x+ 6x +9= 37
14x = 37-9
14x = 28
x = 28/14
x =2
album: 2€
film: 2+1,50 => 3,50€
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bonjour;
album: x
film: x+1,50
8x + 6(x+1,50) = 37
8x+ 6x +9= 37
14x = 37-9
14x = 28
x = 28/14
x =2
album: 2€
film: 2+1,50 => 3,50€