Помогите срочно!!!примеры по алгебре
Левый столбик? 7x - 11 = 5x + 9 2x = 20 x = 10 6x + 35x - 9 = 12 41x = 21 x = 21/41 4x + 8 = 5x + 9 x = -1 16x - 3 = 9x + 12 7x = 15 x = 15/7 (x - 2) - 3(x - 2) = 19 (x - 2)(1 - 3) = 19 -2(x - 2) = 19 x - 2 = -19/2 x = -15/2