Bonjour,
x
son triple: 3x
son quadruple : 4x
3x+4x + 9
7x = 9
x= 9/7
vérif:
3*9/7 + 4*9/7 =
27/7 + 36/7= 63/7 = 9
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Bonjour,
x
son triple: 3x
son quadruple : 4x
3x+4x + 9
7x = 9
x= 9/7
vérif:
3*9/7 + 4*9/7 =
27/7 + 36/7= 63/7 = 9