Ejercicio 1
\[-2x + 3y = -10 \atop -5x + 5y = 0\]
\[x = \mathbf{?}, y = \mathbf{?}\]
\[x = \mathbf{?}, y = \mathbf{?}\]
Ejercicio 2
\[5x - 3y = -42 \atop 2x + y = -19\]
\[x = \mathbf{?}, y = \mathbf{?}\]
\[x = \mathbf{?}, y = \mathbf{?}\]
Ejercicio 3
\[-5x + 5y = -35 \atop 2x + 4y = -16\]
\[x = \mathbf{?}, y = \mathbf{?}\]
\[x = \mathbf{?}, y = \mathbf{?}\]
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