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November 24, 2014

Homework Help: Math

Posted by Shay on Thursday, August 2, 2012 at 11:32am.

What are the 3 solutions? I'm stuck! 6x=15(mod 21)
a=6,m=21,b=15 d=gcd(6,21)=3 solns.
6x=15(mod 21) 2x=5(mod 7)
21=6(3)+3
6+3(2)+0
0=6-6
6-(21-6(3))=3
6-21+18=3
6( )-21()=3

(21-6(3))(15)-6=3 ???????

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