This math topic focuses on practicing algebraic functions through variable substitution in equations with fractional and negative terms. The questions are structured to enhance understanding of how to manipulate algebraic expressions when specific values are substituted for the variables. Each problem presents an equation followed by multiple choices, requiring the solver to substitute negative or fractional values for variables like \( x, y, z, m, c, b \), etc., and simplify the expression to find the correct answer. This practice emphasizes handling negative integers and understanding the effects of arithmetic operations on them.
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What does this equation become when m=4, d=-4