Rieš v \( \mathbb{R} \) rovnici:
\( \frac{7-(-2 x)}{3 x}=0 \)
\( K=\left\{\frac{7}{2}\right\} \)
\( K=\left\{0\right\} \)
\( K=\left\{-7\right\} \)
\( K=\left\{-\frac{7}{2}\right\} \)
