Unformatted text preview: a, n ) = d n = 1. 5. Explain why 6 x â‰¡ 21 2 has no solutions. 6. Show that 6 x â‰¡ 21 9 if and only if 2 x â‰¡ 7 3. 7. Solve 2 x â‰¡ 7 3. Let x be the unique solution. 8. Check that x , x 1 = x + 1 Â· 7 and x 2 = x + 2 Â· 7 are all diferent solutions of 6 x â‰¡ 21 9. Why does this not work for x + 3 Â· 7? 9. Â±ind the seven solutions of 14 x â‰¡ 35 21. 1...
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 Fall '10
 AnthonyPhillips
 Natural number, Quantification, congruence equation ax

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