Решение уравнения (а) 6y/4 + 7 + 8/3 - 5y/4 = 5

6y/4 - 5y/4 + 7 + 8/3 = 5 => y/4 + 7 + 8/3 = 5 => y/4 = 5 - 7 - 8/3 => y = (5-7-8/3)*4 => y = -28/3