Why This Matters for Nursing: Dosing formulas often contain variables. "Dose = Weight × 2.5 + 10" is an algebraic expression. Understanding how to read and simplify these helps you use medical formulas correctly.
An algebraic expression combines numbers, variables, and operations: - Variable: A letter representing an unknown value (x, y, n, w) - Coefficient: The number multiplied by a variable (in 3x, the coefficient is 3) - Constant: A number without a variable (in 3x + 5, the constant is 5) - Term: Parts separated by + or - signs (in 3x + 5, there are 2 terms)
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