Algebraic Reasoning

A2.A.1 Represent and solve mathematical and real-world problems using nonlinear equations and systems of linear equations; interpret the solutions in the original context.
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A2.A.1.1
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A2.A.1.3; A2.A.1.5
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A2.A.1.8; A2.A.1.9
A2.A.2 Represent and analyze mathematical situations and structures using algebraic symbols using various strategies to write equivalent forms of expressions.
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A2.A.2.1