2) a) \(y = \frac{x+8}{2}\), \(x = 2y-8\) б) \(y = -\frac{x}{3}\), \(x = -3y\) в) \(y = 2x + 5\), \(x = \frac{y-5}{2}\) 3) a) \(y = \frac{3x}{2}\), \(x = \frac{2y}{3}\) б) \(y = -\frac{2x+10}{5}\), \(x = -\frac{5y+10}{2}\) в) \(y = \frac{3x-2.4}{8}\), \(x = \frac{8y+2.4}{3}\)