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Sagot :

VINS

bonjour

3 ( 3 x - 18 ) = 3 x -  1/2

9 x - 54 = 3 x -  1 /2

18 x / 2 - 108 /2 =  6 x /2 - 1 /2

18 x - 6 x = - 1 + 108

12 x = 107

x = 107/ 12

Hello !

3 ( 3x - 18 ) = 3x - 1/2

9x - 54 = 3x -1/2

9x - 3x = -1/2 +108/2

6x = 107/2

x = 107/12

Bonne journée

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