Réponses

2014-05-22T19:58:55+02:00
Salut ;)

5x  + 3(5x -3 + 8)  =  4x - 6 ( 9x- 8+ 3x)
5 x+3 (5 x+5) = 4 x-6 (12 x-8)
5 (4 x+3) = 48-68 x
5 (4 x+3) = -4 (17 x-12)
20 x+15 = 48-68 x

x= 3/8