(-4) * (-$$1\frac{1}{3}$$) * (2x - $$8\frac{1}{2}$$) = 0
(-4) * (-$$\frac{4}{3}$$) * (2x - $$\frac{17}{2}$$) = 0
$$\frac{16}{3} \cdot (2x - \frac{17}{2}) = 0$$
$$2x - \frac{17}{2} = 0$$
$$2x = \frac{17}{2}$$
$$x = \frac{17}{4} = 4,25$$
Ответ: **4,25**