SVP voici le problème : La différence de deux nombres est 10. l'un des nombres est égal au triple de l'autre.Trouver ces deux nombres 1) mettre ce problème en é

1) x-y = 10 et 3x = y

2) [tex] \left \{ {{x-y = 10} \atop {3x = y}} \right. [/tex]

[tex] \left \{ {{x-y = 10} \atop {x = y/3}} \right. [/tex]

[tex] \left \{ {{(y/3)-y = 10} \atop {x = y/3}} \right. [/tex]

[tex] \left \{ {{(y/3)-(3y/3) = 10} \atop {x = y/3}} \right. [/tex]

[tex] \left \{ {{-(2y/3) = 10} \atop {x = y/3}} \right. [/tex]

[tex] \left \{ {{-2y = 30} \atop {x = y/3}} \right. [/tex]

[tex] \left \{ {{y = -15} \atop {x = y/3}} \right. [/tex]

[tex] \left \{ {{y = -15} \atop {x = -15/3}} \right. [/tex]

[tex] \left \{ {{y = -15} \atop {x = -5}} \right. [/tex]