6.334 Решите уравнение: a) 10 - 2,6x = 2,59; б) (y + 16,7) * 2,6 = 80,08; в) (z - 2,3) : 0,4 = 31,1; г) 2,5m + m = 7,7;

a) \(10 - 2.6x = 2.59\) \(-2.6x = 2.59 - 10\) \(-2.6x = -7.41\) \(x = \frac{-7.41}{-2.6}\) \(x = 2.85\) б) \((y + 16.7) \cdot 2.6 = 80.08\) \(y + 16.7 = \frac{80.08}{2.6}\) \(y + 16.7 = 30.8\) \(y = 30.8 - 16.7\) \(y = 14.1\) в) \((z - 2.3) : 0.4 = 31.1\) \(z - 2.3 = 31.1 \cdot 0.4\) \(z - 2.3 = 12.44\) \(z = 12.44 + 2.3\) \(z = 14.74\) г) \(2.5m + m = 7.7\) \(3.5m = 7.7\) \(m = \frac{7.7}{3.5}\) \(m = 2.2\)