Solve the equations from Variant 6.

Вариант 6

1. \( -5x - 9 = -6x - 10 \)
   \( -5x + 6x = -10 + 9 \)
   \( x = -1 \)
2. \( 4x = 7 + 3(4x + 3) \)
   \( 4x = 7 + 12x + 9 \)
   \( 4x = 12x + 16 \)
   \( 4x - 12x = 16 \)
   \( -8x = 16 \)
   \( x = -2 \)

Ответ: 1. x = -1; 2. x = -2.