7, 2n + 3 where n=2, 34, 5n - 1 where n=7, 10, 20 - n where n =10, 9, n+7 where n=2, 16, 8n where n=2, 31, 10t + 1 where t=3, 27, 3t where t=9, 28, 9t+1 where t=3, 3, n/9 where n=27, 12, 20 - 2n where n=4.

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