Ejercicio 1
\[4x - 2y = 2 \atop 3x + 5y = 60\]
\[x = \mathbf{?}, y = \mathbf{?}\]
\[x = \mathbf{?}, y = \mathbf{?}\]
Ejercicio 2
\[-x - y = -4 \atop 5x - 3y = -36\]
\[x = \mathbf{?}, y = \mathbf{?}\]
\[x = \mathbf{?}, y = \mathbf{?}\]
Ejercicio 3
\[5x + 2y = 20 \atop 2x + y = 6\]
\[x = \mathbf{?}, y = \mathbf{?}\]
\[x = \mathbf{?}, y = \mathbf{?}\]
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