Final answer:
To find f(n) + g(n), substitute the given expressions for f(n) and g(n) into the expression and simplify by combining like terms. The resulting expression is 5n + 1.
Step-by-step explanation:
To find f(n) + g(n), we need to substitute the given expressions for f(n) and g(n) into the expression.
f(n) + g(n) = (2n + 1) + (3n)
Simplify by combining like terms:
f(n) + g(n) = 2n + 1 + 3n = 5n + 1
Therefore, f(n) + g(n) = 5n + 1.