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x + y = 8
x - y = 2
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2x + 0y = 10
2x = 10
x = 10/2
x = 5
Reemplazo el valor de x en ecuación 1
x + y = 8
5 + y = 8
y = 8 - 5
y = 3
Respuesta.
x = 5
y = 3