This math topic involves solving algebraic equations with variable substitution and deals primarily with fractional terms from equations. The exercises focus on substituting variables with specific integer values, and calculating the resulting expressions which sometimes include negative integers. Each question presents an algebraic equation in fraction form and asks the student to substitute given values for variables and choose the correct resultant expression from multiple options, examining their understanding in applying algebraic operations with fractions and negative integers.
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What does this equation become when r=4, p=2, z=3