Question

(39/14+х) -25/14=67/14

Answer 1

Ответ:

$\frac{39}{14 + x} - \frac{25}{14} = \frac{67}{14}$

$\frac{39}{14 + x } = \frac{67 + 25}{14} = \frac{92}{14} = \frac{46}{7}$

$46(14 + x) = 7 \times 39$

$644 + 14x = 273$

$14x = 273 - 644 = - 371$

$x = \frac{ - 371}{14} = - 26.5$