\left\{ \begin{array} { l } { \frac { x } { 3 } + \frac { 5 } { y } = 2 } \\ { \frac { 9 } { x } - \frac { 10 } { y } = 1 } \end{array} \right.
Solve for x, y
x=\frac{9}{2}=4.5\text{, }y=10
x=3\text{, }y=5
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