Réponses

2014-04-03T16:56:19+02:00
Résoudre des fractions 

5/4x = 2 + 1/4x
5/4x - 1/4x = 2
4/4x = 2
x = 2

-2/3x + 2 = 4 - 5/3x
-2/3x + 5/3 x = 4 - 2
3/3x = 2
x = 2

-1/2x + 5 = 3/2x + 9
-1/2x - 3/2x = - 5 + 9
-4/2x = 4
-2x = 4
x = -4/2
x = -2