2) a) 7x-4 = x - 16; б) 13 – 5x = 8 - 2x; в) 4у + 15 = 6y + 17; г) 1,3р – 11 = 0,8p + 5; д) 0,71х – 13 = 10 – 0,29x; e) 8c + 0,73 = 4,61 – 8c;

Решение:

1. а) 7x - 4 = x - 16
   \( 7x - x = -16 + 4 \)
   \( 6x = -12 \)
   \( x = -2 \)
2. б) 13 – 5x = 8 - 2x
   \( 13 - 8 = 5x - 2x \)
   \( 5 = 3x \)
   \( x = \frac{5}{3} \)
3. в) 4y + 15 = 6y + 17
   \( 15 - 17 = 6y - 4y \)
   \( -2 = 2y \)
   \( y = -1 \)
4. г) 1,3р – 11 = 0,8p + 5
   \( 1.3p - 0.8p = 5 + 11 \)
   \( 0.5p = 16 \)
   \( p = \frac{16}{0.5} = 32 \)
5. д) 0,71х – 13 = 10 – 0,29x
   \( 0.71x + 0.29x = 10 + 13 \)
   \( x = 23 \)
6. е) 8c + 0,73 = 4,61 – 8c
   \( 8c + 8c = 4.61 - 0.73 \)
   \( 16c = 3.88 \)
   \( c = \frac{3.88}{16} = 0.2425 \)

Ответ: а) \( x = -2 \); б) \( x = \frac{5}{3} \); в) \( y = -1 \); г) \( p = 32 \); д) \( x = 23 \); е) \( c = 0.2425 \).