Respuesta:
Explicación paso a paso:
1)
x + 3y = 1
x = 1 - 3y
x = -2y
2)
2x - y = 2
2x = 2 + y
2x = 2y
x = 2y/2
x = y
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Respuesta:
Explicación paso a paso:
1)
x + 3y = 1
x = 1 - 3y
x = -2y
2)
2x - y = 2
2x = 2 + y
2x = 2y
x = 2y/2
x = y