Réponses

Meilleure réponse !
2014-06-10T03:55:30+02:00
2014-06-10T06:54:18+02:00
2(3-x)+3(x-1)
6 -2x +3x -3
+x +3
5(2-3x) +4 (x+3)
10 -15x +4x +12
+22 -11x
-x+2(3-4x) +3 (3x-1)
-x +6 -8x +9x -3
+3