Вариант II. Задание 3. Решите уравнение: a) 5,23 + x = -7,24; б) y - 2 5/12 = -3 7/15.

a) 5,23 + x = -7,24 x = -7,24 - 5,23 x = -12,47 б) \(y - 2\frac{5}{12} = -3\frac{7}{15}\) y = \(-3\frac{7}{15} + 2\frac{5}{12}\) y = \(-\frac{52}{15} + \frac{29}{12}\) y = \(-\frac{208}{60} + \frac{145}{60}\) y = -\frac{63}{60} = -\frac{21}{20} = -1\frac{1}{20}\)