Question

5. Решите уравнение: 0,2⋅ |5х − 2 | − 6 = 3,8

Answer 1

Ответ:

$0.2 |5x - 2| - 6 = 3.8 \\ 0.2 |5x - 2| = 9.8 \\ |5x - 2| = 49 \\ 1)5x - 2 = 49 \\ 5x = 51 \\ x = \frac{51}{5} \\ 2)5x - 2 = - 49 \\ 5x = - 47 \\ x = - \frac{47}{5}$