Rieš v \( \R \) rovnicu:
\( \large\frac{{7x+3}}{{x+\sqrt2}}=0 \)
\( \large K=\left\{-\frac{7}{3}\right\} \)
\( \large K=\left\{\frac{3}{7}\right\} \)
\( \large K=\left\{-\frac37\right\} \)
\( \large K=\left\{0\right\} \)