Réponses

2014-10-14T20:41:00+02:00
Bonsoir

a) 4 x + 6x + 2 x = - 4 -7
    12 x = - 11
      x = - 11/12

b) 10 x - 6 x + 5x = 6 + 10
   9 x = 16
    x = 16/9

c) 36 x /28 = - 147/28
     36 x = - 147
       x = - 147/36  = - 49//12

d) 4 x - 8 x + 6x = - 7 + 12 - 2
   2 x = 3
  x = 3/2