Réponses

2014-09-06T18:30:47+02:00
Bonjour

Je suppose qu'il faut lire

3(x +5) = - 4 x - (4 +2 x)
3 x + 15 = -4x - 4 - 2x
3x +4x +2x = - 4 -15
9x = - 19
x = - 19/9
  • Utilisateur Brainly
2014-09-06T18:32:11+02:00
3(x + 5) = - 4x - (4 + 2x)
3x + 15 = - 4x - 4 - 2x
3x + 4x + 2x = - 4 - 15
9x = - 19
x = - 19/9

S= {- 19/9}