Final answer:
The equivalent expression for '80 + 20n' is the expression itself as it cannot be further simplified or combined without additional context or instructions for manipulation.
Step-by-step explanation:
The student has asked for an equivalent expression for the algebraic expression 80 + 20n. It is important to note that this expression already stands in its simplest form and does not have like terms that can be combined. Therefore, the equivalent expression for 80 + 20n is the expression itself. However, if we are looking to represent this in a different form, we might factor common terms or manipulate the expression, but without additional context, the distinction or purpose of such manipulation cannot be ascertained.
In some specific contexts like probability calculations or sequences, changing the expression might represent a different logic. For instance, when calculating expected values (EX), population estimates (N), or mathematical relationships (n1), different contextual formulas would be used. Nevertheless, for the given expression 80 + 20n, no further simplification or transformation is evident without additional instructions or context.