3. Решите уравнение $$9x - 6(x - 1) = 5(x + 2)$$.

$$9x - 6(x - 1) = 5(x + 2)$$
$$9x - 6x + 6 = 5x + 10$$
$$3x + 6 = 5x + 10$$
$$6 - 10 = 5x - 3x$$
$$-4 = 2x$$
$$x = -2$$.