Réponses

2014-06-03T00:20:57+02:00
2((11-4y)/4)+6y=9,10
2 ( (11-4y) / 4 ) + 6y = 9,10
2 ( 11/4 - y ) + 6y = 9,10
2 * 11 / 4 - 2y + 6y = 9,10
11/2 + 4y = 9,10
5,50 + 4y = 9,10
4y = 9,10 - 5,50
4y = 3,60
y = 3,60/4
y = 0.9