2. Решите уравнения: 1) 1,4x + 14 = 0,6x + 0,4 2) \(\frac{x-2}{x-7}\) = \(\frac{5}{8}\) 3) 5(1-2y) = 7-4(3y+1)

2. Решите уравнения:

1. \( 1.4x + 14 = 0.6x + 0.4 \)
   \( 1.4x - 0.6x = 0.4 - 14 \)
   \( 0.8x = -13.6 \)
   \( x = \frac{-13.6}{0.8} \)
   \( x = -17 \)
2. \( \frac{x-2}{x-7} = \frac{5}{8} \)
   \( 8(x-2) = 5(x-7) \)
   \( 8x - 16 = 5x - 35 \)
   \( 8x - 5x = -35 + 16 \)
   \( 3x = -19 \)
   \( x = -\frac{19}{3} \)
3. \( 5(1-2y) = 7-4(3y+1) \)
   \( 5 - 10y = 7 - 12y - 4 \)
   \( 5 - 10y = 3 - 12y \)
   \( -10y + 12y = 3 - 5 \)
   \( 2y = -2 \)
   \( y = -1 \)

Ответ: 1) -17; 2) -\(\frac{19}{3}\); 3) -1.