The problem asks us to solve the equation $\frac{n}{10} - 2.3 = 4.5$ for $n$.

1. Problem Description

The problem asks us to solve the equation $\frac{n}{10} - 2.3 = 4.5$ for $n$.

2. Solution Steps

First, we need to isolate the term with $n$ by adding $2.3$ to both sides of the equation:

$\frac{n}{10} - 2.3 + 2.3 = 4.5 + 2.3$

$\frac{n}{10} = 6.8$

Next, we multiply both sides of the equation by $10$ to solve for $n$:

$10 \times \frac{n}{10} = 10 \times 6.8$

$n = 68$

3. Final Answer

$n = 68$