Réponses

  • Utilisateur Brainly
2014-04-05T13:58:57+02:00
a) 5(x-2)-(2x-7)>4-(3x+5)
5x-10-2x+7<-3x-1
6x<2
x<1/3

b) (3x-7)-2(x+1)≤x-12
3x-7-2x-2 ≤ x-12
x-10 ≤ x-12
impossible

c) 5-(3+6x)≥8+6x

5-3-6x ≥ 6x+8
-12x ≥ 6
x ≤ -1/2