Réponses

2014-04-19T15:03:29+02:00
4,50x=3x+45
x=3x+45-4,50
x=3x+40,50
-3x+x=40,50
2x=40,50
x=(40,50)/2
x=20,25
2014-04-19T15:08:10+02:00


Résoudre l'équation:

4,50x = 3x + 45

4,50x - 3x = 45

1,5x = 45

x = 45/1,5

x = 30