2) 0,75²ˣ⁻⁸ = (1⅓)⁶⁻ˣ
$$ \left( \frac{3}{4} \right)^{2x-8} = \left( \frac{4}{3} \right)^{6-x} $$
$$ \left( \frac{3}{4} \right)^{2x-8} = \left( \frac{3}{4} \right)^{x-6} $$
$$ 2x - 8 = x - 6 $$
$$ x = 2 $$
Ответ: 2