ABSTRACT
Preview Activity 35.1. This investigation will involve both congruence of integers and the dihedral
groupD5. In this activity, we will review a few of the basics.
(a) Determine the value of x that satisfies the congruence equation
2(1) + 3(2) + 4(2) + 5(6) + 6x ≡ 0 (mod 7).
