Question

ОЧЕНЬ СРОЧНО! ОТДАЮ ВСЕ БАЛЛЫ

Answer 1

$\left \{ {{\frac{1}{x}+\frac{1}{y}=\frac{5}{6}} \atop {\frac{1}{x}-\frac{1}{y}=\frac{1}{6}}} \right.\oplus \ominus \left \{ {{\frac{2}{x}=\frac{6}{6}} \atop {\frac{2}{y}=\frac{4}{6}}} \right. \; \; \left \{ {{x=2} \atop {y=3}} \right.$