Помогите срочно пожалуйста быстрее
1. 4+8y +8 = 2y - 10 - 7y +9 12 + 8y = -5y - 1 8y + 5y = -1 -12 13y = -13 y = -13 / 13 y = -1 2. 3x/5 = 6+x/3 9x = 30 + 5x 9x - 5x = 30 4x = 30 x = 30/4 x = 7,5 3. 8x - (7x + 8) = 9 8x - 7x - 8 = 9 8x - 7x = 9 + 8 x = 17