Solve the System by Eliminating the Variable

question 23

Multiple Choice

Solve the system by eliminating the variable.

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Definitions:

Fairy Tales

A type of short story that typically features folkloric fantasy characters, such as dwarves, dragons, elves, fairies, giants, gnomes, goblins, mermaids, trolls, witches, and usually magic or enchantments.

Altruism

The selfless concern for the well-being of others, often manifested in acts of kindness or generosity without expectation of personal gain.

Reciprocity Norm

Social rule emphasizing the expectation to respond in kind to others' actions, fostering cooperation and fairness in human interactions.

Superordinate Goals

Objectives shared and valued by multiple groups, which can help to reduce conflict by aligning interests and encouraging cooperation.