Bonsoir pouvez vous me donne les réponses svp merci Exercice 1
x + 3y = 3 x + 6y = 54
Exercice 2
x − 8y = −42 x − 2y = −98
Exercice 3
x + 9y = 68 x − 2y = −44
Exercice 4
x + 3y = −33 x − 4y = 94
Exercice 5
x − 10y = 74 x + 4y = −8
Exercice 6
x − 9y = 9 x + 4y = −52
Exercice 7
+ 3y = −96
+ 2y = −70
Exercice 8
x + 7y = 39 x − 8y = −81
Exercice 9
x − 5y = −11 x − 3y = 47
Exercice 10
= 72
= −70
Exercice 11
= 14
= −3
Exercice 12
= 29
= 33