Réponses

2013-04-29T09:55:52+02:00

a) 6x = 0 => x = 0

 

b) -x-2 = -7x + 4 => 6x = 6 => x = 1

 

2013-04-29T10:40:56+02:00

a) 6x = 0  x = 0

 

b) -x-2 = -7x + 4  6x = 6  x = 1