Rieš v \( \R \) rovnicu:
\( \large\sqrt{3x+3}+\sqrt{1\frac13x}=\sqrt{\frac{x}{3}+7} \)
\( \large K=\left\{{\frac{1}{2}}\right\} \)
\( \large K=\left\{{\frac13}\right\} \)
\( \large K=\left\{{\frac{2}{3}}\right\} \)
\( \large K=\left\{{\frac{1}{4}}\right\} \)