CORRIGÉ
Activité 1 page ... 6x - 11x = +113 ? 50. - 5x = +63 x = x= ?12,6 . Exercice n°2 page 80 a. x + 5 = 12 x = 12 - 5 x = 7 b. x = ?5 c. x = 12 d. x = ?7. Exercice ...
Activité 1 page ... 6x - 11x = +113 ? 50. - 5x = +63 x = x= ?12,6 . Exercice n°2 page 80 a. x + 5 = 12 x = 12 - 5 x = 7 b. x = ?5 c. x = 12 d. x = ?7. Exercice ...