find all solutions to the congruence

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$Old$ 06-18-2008, 11:30 AM

duggaboy $duggaboy is offline$

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$Default$ is my answer correct?

using a table of indices mod 37 find the solutions.....

7x^20==34(mod37)
I(7x^20) == I(34) (mod 36)
I(7) + I(x^20) == I(34)
I(7) + 20 (I(x)) == I (34)
subtract I(7) from both sides
_________________________________
20(I(x)) ==I(34) - I(7)
20x = 34-7
20x = 27 (mod 36)

From this point I'm lost....I know that the gcd (20, 36) = 4 therefore there are 4 solutions, but I can't seem to move past this point...

Last edited by duggaboy; 06-18-2008 at 03:28 PM.

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