№ 2 Решите уравнение 1) 5x + 10 = - 15x-4 2) 9 (x - 11) = -15-5x

Решение:

1. \( 5x + 10 = -15x - 4 \)
   \( 5x + 15x = -4 - 10 \)
   \( 20x = -14 \)
   \( x = \frac{-14}{20} = -\frac{7}{10} = -0,7 \)
2. \( 9(x - 11) = -15 - 5x \)
   \( 9x - 99 = -15 - 5x \)
   \( 9x + 5x = -15 + 99 \)
   \( 14x = 84 \)
   \( x = \frac{84}{14} = 6 \)

Ответ: 1) \( x = -0,7 \); 2) \( x = 6 \).