Respuesta :

sqdancefan

Answer:

  (x, y) = (11, 1), (3, 9), (8, 4)

Step-by-step explanation:

To solve for x, subtract y:

  x = 12 -y

To solve for y, subtract x:

  y = 12 -x

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For y=1, x = 12-1 = 11

For x=3, y = 12-3 = 9

For y=4, x = 12-4 = 8