Find All Replacements (Less Than the Modulus) for the Question

question 134

Multiple Choice

Find all replacements (less than the modulus) for the question mark that make the statement true.
-6 ∙ ? ≡ 8 (mod 10)

• A) 1, 9
• B) 3
• C) 3, 8
• D)4, 8

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Definitions:

Preconscious

According to Freud, material just beneath the surface of awareness that can be easily retrieved.

Collective Unconscious

A concept in psychology proposed by Carl Jung, referring to the part of the unconscious mind which is shared among beings of the same species containing memories and archetypes.

Unconscious

According to Freud, thoughts, memories, and desires that are well below the surface of conscious awareness but that nonetheless exert great influence on one’s behavior.

Subconscious

The part of the mind that is not currently in focal awareness but influences thoughts and behaviors.