To solve the equation \( 9c = 63 \), you need to isolate \( c \). You can do this by dividing both sides of the equation by 9:
\[ c = \frac{63}{9} \]
Now, calculate \( \frac{63}{9} \):
\[ c = 7 \]
Thus, the value of \( c \) that is a solution to the equation is \( c = 7 \).