Resoudre 2*6x=27+9x Aidez moi svp !

bonjour,

12x = 27+9x
12x-9x = 27
3x = 27
x = 9

2 X 6x = 27 + 9x
12x = 27 + 9x
12x - 9x = 27
3x = 27
x = 27 / 3
x = 9

Vérification : 

2 X 6 X 9 = 27 + 9 X 9
12 X 9 = 27 + 81
108 = 108

Donc, c'est juste :)