Solve the System of Linear Equations by the Substitution Method

question 17

Multiple Choice

Solve the system of linear equations by the substitution method.

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Definitions:

Endotherm

An animal that uses metabolic energy to maintain a constant body temperature despite variations in environmental temperature (e.g., birds and mammals). Compare with ectotherm.

Structural Adaptation

Physical features of an organism that have evolved to help it survive or thrive in its environment.

Feathers

Specialized skin growths in birds, contributing to flight, insulation, and display.

Maintaining Temperature

The process by which living organisms regulate their internal temperature within certain limits despite external environmental changes.