Réponses

Meilleure réponse !
2014-04-07T13:42:15+02:00
2x + 1 = 6 * (-2)
2x +1 = -12
2x= -12-1
2x= -13
x= -13/2 = - 7.5 
2014-04-07T13:51:17+02:00
Résoudre cette équation :

2x + 1
= -2
    6
2x + 1 = 6 * - 2
2x +1 = -12
2x = -12 - 1
2x = -13
x = -13/2
x = - 7,5

2x + 1 = -2
6
2x + 1 = 6 * - 2
2x +1 = -12
2x = -12 - 1
2x = -13
x = -13/2
x = - 7,5