Final answer:
The expression 12x+16 is a simplified algebraic expression involving variables and constants.
Step-by-step explanation:
The given expression is 12x+16. This is an algebraic expression involving variables and constants. To simplify it, we can combine the like terms, which means adding or subtracting the terms that have the same variable and exponent.
In this case, 12x is the only term with the variable x. So, we cannot combine it with anything else. Therefore, the simplified expression is 12x+16.