Question

СРООЧНООО!!!!!!!!!!ДАЮ 30 БАЛЛОВ!))

Answer 1

$\frac{3}{4x - 9} = \frac{3}{7}$

$4x - 9 = 7$

$4x = 7 + 9$

$4x = 16$

Ответ:

$x = 4$