MathCastle
Groups and FieldsMediumGroups and the Group Axioms

Groups and the Group Axioms · Medium problem

In (Z12,+)(\mathbb Z_{12},+), solve the linear congruence 5x+7≡3(mod12)5x+7\equiv3\pmod{12} for x∈{0,1,…,11}x\in\{0,1,\ldots,11\}.