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Sagot :

VINS

bonjour

x /3 - 4 + x /4 - 6 = - 6.5

4 x /12 -  48/12 + 3 x /15 -  72/12 = - 78/12

7 x = - 78 + 48 + 72

7 x =   42

x = 6  

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