SCHERRER772014 SCHERRER772014 14-06-2022 Mathématiques Answered Exercice 5: Réduire : A = 5xn+7xn E = 3y-3y B = 9x - 4x F = 3n² - 2n² C = y + 3y G = 5x - 4x + 12x D = 4x - x H = 6a+ 1lb - 2a