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Sagot :

Réponse :

D=(18/6-4/6)/(-1/3-4/9)

D=(14/6)/(-3/9-4/9)

D=(14/6)/(-7/9)

D=7/3*9/-7

D=-63/21

D=-3

MAUDMARINE

Bonjour,

D = (3 - 4/6) : (- 2/6 + - 4/9)

D = [(3 x 3) / (1 x 3) - (2 x 2) / (2 x 3)] ; [(- 2 x 3) / (6 x 3) - (4 x 2) / (9 x 2)]

D = (3/3 - 2/3) : (- 6/18 - 8/18)

D = 1/3 : - 14/18

D = 1/3 x - 18/14

D = - 18/42

D = (6 x - 3) / (6 x 7)

D = - 3/7.

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