Photos 3Х 9 4Х

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3х 9 4х. 6х+9-4х 6х+6. Х2/х-9 =12-х/х2-9. -3х6 + 12х12;. 9х+12х+4 0.
6х+9-4х 6х+6. Х2/х-9 =12-х/х2-9. -3х6 + 12х12;. 9х+12х+4 0.

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