Réponses

  • Utilisateur Brainly
2014-04-27T17:28:19+02:00
a) x-3 = 0  
x=3
b) 7+x = 0 
x=-7
 c) 5x=-2  
x=-0,4
d) x/5 = -8  
x=-40
e) 3x = 0
x=0
2014-04-27T17:29:16+02:00
Résoudre les équations :  

a)
x - 3 = 0  
x = 3

b)
7 + x = 0  
x = - 7

c)
5x = -2
x = - 2/5  

d)
x/5 = - 8  
x = - 8 x 5
x = - 40

e)
3x = 0
x = 0