Řeš v \( ℝ × ℝ × ℝ \) soustavu rovnic:

\( \frac{1}{x} + \frac{1}{y} + \frac{1}{z} = 9 \)

\( \frac{2}{x}\ –\ \frac{3}{y} + \frac{4}{z} = 11 \)

\( \large \Large \frac{4}{x}\large + \Large \frac{3}{y}\large -\Large \frac{2}{z}\large = 9 \)