Respuesta:
[tex]x + y = 10 \\ x - y = 14 \\ 2x = 24 \\ x = 12 \\ y = - 2[/tex]
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Respuesta:
[tex]x + y = 10 \\ x - y = 14 \\ 2x = 24 \\ x = 12 \\ y = - 2[/tex]