\[\frac{3,7 - 2,2}{x} + 2x^{\backslash x} = \frac{1,5 + 2x^{2}}{x};\ \ \]
\[x = 3:\]
\[\frac{1,5 + 2 \cdot 3^{2}}{3} = \frac{1,5 + 18}{3} = \frac{19,5}{3} = 6,5.\]