The solution of the system of equations x + 2Y = 25x-2y = 3 is also a binary linear equation X-Y = 1 a =? x+ay=2 5x-2y=3

If we take 5x-2y = 3, X-Y = 1, we get x = 1 / 3, y = - 2 / 3. If we take x + ay = 2, we get a = - 5 / 2

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