Réponse :

Bonjour,

2x = 7 : x = 2/7

9x = 4/5 : x = 4/45

-3x = 8 : x = -8/3

5/4x =-15 : x = -12

-5x = -2 : x = 2/5

-7/3x = 5/2 : x = -14/15

bonne journée et joyeux noel