№5. Решите уравнения 1) 2x – 7 + 6x + 1 = 18 2) (4 - 8,2x) – (3,8x + 1) = 5

Решим уравнения.

1. $$2x - 7 + 6x + 1 = 18$$

   $$8x - 6 = 18$$

   $$8x = 18 + 6$$

   $$8x = 24$$

   $$x = \frac{24}{8}$$

   $$x = 3$$

2. $$(4 - 8,2x) - (3,8x + 1) = 5$$

   $$4 - 8,2x - 3,8x - 1 = 5$$

   $$-12x + 3 = 5$$

   $$-12x = 5 - 3$$

   $$-12x = 2$$

   $$x = -\frac{2}{12}$$

   $$x = -\frac{1}{6}$$

Ответ: 1) $$x=3$$; 2) $$x=-\frac{1}{6}$$