Solución 1
\[-x + 3y = -13x \atop 3x - 2y = 11x\]
\[x = \boxed{1}, y = \boxed{-4}\]
Solución 2
\[-4x + 4y = 4x \atop 2x + 4y = 58x\]
\[x = \boxed{9}, y = \boxed{10}\]
Solución 3
\[-4x - 5y = -38x \atop -4x - y = 2x\]
\[x = \boxed{-3}, y = \boxed{10}\]
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