To determine if \( g = 10 \) is a solution to the equation \( g + 5 = 15 \), we can substitute \( g \) with 10.
\[ 10 + 5 = 15 \]
Now, simplify the left side:
\[ 15 = 15 \]
Since the equation holds true, the answer is yes, \( g = 10 \) is a solution to the equation.