bonsoir
soit x les chaussons
Laura = 2 x + 4 * 0.95 = 2 x + 3.8
Alex = 5 x + 2 *0.95 = 5 x + 1.9
2 x + 3.8 + 2.3 = 5 x + 1.9
2 x - 5 x = 1.9 - 3.8 - 2.3
- 3 x = 4.2
x = 1.4
chaussons = 1.4 €
Laura = 2.8 + 3.8 = 6.6
Alex = 7 + 1.9 = 8.9 soit 2.30 de plus