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4x + y = 13 (1)
3x - 2y = 7 (2)
Metodo de eliminacion.
Multiplicamos (1) Por 2
(4x + y = 13)(2)
8x + 2y = 26 La sumamos con (2) Para eliminar y
3x - 2y = 7
-------------------
11x = 33
x = 33/11
x = 3
Reemplazamos el valor de x = 3 en (1)
4x + y = 13
4(3) + y = 13
12 + y = 13
x = 13 - 12
x = 1
Respuesta.
(3 , 1)