x+8 =15, x+5 =12, x-6 =13, x-4 = 20, 2x =12, 3 x =15, 4x = 20, x ÷3 = 6, x÷ 2 = 8, x÷ 4 = 7.

Classement

Style visuel

Options

Changer de modèle

Restauration auto-sauvegardé :  ?