This math topic focuses on substituting values for variables in algebraic expressions and evaluating the resulting expressions. The problems involve basic arithmetic operations (addition, subtraction, multiplication) with an emphasis on handling negative integers. Each question presents an algebraic equation with variables. Learners substitute given numerical values into these variables and choose the correct answer from multiple options that showcase various possible outcomes of the calculations. The theme of using algebra to understand the impact of variable changes and the correct manipulation of terms and constants is consistent throughout the material.
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What does this equation become when z=2, n=4