Réponses

2013-12-25T20:02:55+01:00
3x + 2y = 50

2y = 50 - 3x
y = (50-3x)/2
y = 25 - 3/2x
2013-12-25T21:52:57+01:00
3x + 2y = 50
2y = 50 + 3x
y = (50/2) - (3x/2)
y = 25 - 3/2x