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

1. 2x - 7 + 6x + 1 = 18 => 8x - 6 = 18 => 8x = 24 => x = 3
2. 4 - 8.2x - 3.8x - 1 = 5 => 3 - 12x = 5 => -12x = 2 => x = -2/12 = -1/6
Ответ: 1) x = 3; 2) x = -1/6