Решите уравнения №6:

Решение:

№6.

1. \( 0,5x = -4,5 \)
   \( x = \frac{-4,5}{0,5} \)
   \( x = -9 \)
2. \( 10 - 7x = 7 - x \)
   \( 10 - 7 = -x + 7x \)
   \( 3 = 6x \)
   \( x = \frac{3}{6} \)
   \( x = \frac{1}{2} \)
3. \( \frac{x}{2} - \frac{x}{7} = 5 \)
   \( \frac{7x - 2x}{14} = 5 \)
   \( \frac{5x}{14} = 5 \)
   \( 5x = 5 \cdot 14 \)
   \( 5x = 70 \)
   \( x = \frac{70}{5} \)
   \( x = 14 \)

Ответ: а) -9, б) \(\frac{1}{2}\), в) 14.