Photos 6X 1 2Y Y 3 X

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6x 1 2y y 3 x. 3x3 2y 3 6x 2y. 3xy-6y-x2+2x. X 2y 1 XY Y 12 X=1+2y. X2+XY=12 Y-X=2.
3x3 2y 3 6x 2y. 3xy-6y-x2+2x. X 2y 1 XY Y 12 X=1+2y. X2+XY=12 Y-X=2.

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