Réponses

2014-04-17T11:27:03+02:00
J= -1+(-3x + 4)
j = -1 -3x +4
j = -3x +3

K= -3b+4+(-b-5)
k = -3b+4-b-5
k =-3b-b-5+4
k =-4b -1

L= 5-2y-(7-4y)
l =5-2y -7 +4y
l = -2y+4y+5-7
l = 2y -2