Question

please answer 10 th one please with explanation​

Answer 1

$\frac{9x}{7 - 6x} = 2 \\ \\ 9x = 2(7 - 6x) \\ \\ 9x = 14 - 12x \\ \\ 9x + 12x = 14 \\ \\ 21x = 14 \\ \\ x = \frac{14}{21} = \frac{2}{3}$