Question

/14х – 4/ = 9. решите уравнение

Answer 1

Пошаговое объяснение:

$|14x - 4| = 9 \\ 14x - 4 = 9 \: \: \: \: \: \: \: 14x - 4 = - 9 \\ 14x = 13 \: \: \: \: \: \: \: 14x = - 5 \\ x = \frac{13}{14} \: \: \: \: \: \: \: x = - \frac{5}{14}$

Answer 2

$|14x - 4| = 9 \\ 14x - 4 = 9 \: \: или\: \: 14x - 4 = - 9 \\ 14x = 9 + 4 \: \: 14x = - 9 + 4 \\ 14x = 13 \: \: \: 14x = - 5 \\ x = 13 \div 14 \: \: x = - 5 \div 14 \\ x = \frac{13}{14} \: \: \: x = - \frac{5}{14}$

Ответ : х¹=13/14 ; х²= -5/14 .