Question
Solve the equation:
$\frac{2}{x}+\frac{2}{3 y}=\frac{1}{6}, \frac{3}{x}+\frac{2}{y}=0$

Answer

$x=6, y=-4$
\[\left[\text { Hint. Put } \frac{1}{x}=u \text { and } \frac{1}{y}=v\right]\]

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