Use the Alphabet Coding Method $$( A = 1 , B = 2 , C = 3 , \ldots Z = 26 )$$

Essay

Use the alphabet coding method $$( A = 1 , B = 2 , C = 3 , \ldots Z = 26 )$$ to solve the problem.
-The function defined by $f ( x ) = 3 x - 4$ was used to encode a message as:
$\begin{array} { l l l l l l l l l l } 38 & 11 & 62 & 11 & 50 & - 1 & 17 & - 1 & 23 & 38 \end{array}$ Find the inverse function and determine the message.