## Algebra: A Combined Approach (4th Edition)

{$50$}
Step 1: $\log 2x=2$ Step 2: $2x=10^{2}$ Step 3: $2x=100$ Step 4: $x=\frac{100}{2}=50$ Therefore, the exact solution is {$50$}. Since the answer is a whole number, a four decimal approximation does not exist.