To solve for \( X \) in the equation \( A + X + E = 16 + C + 4 \), we first need to clarify what values \( A \), \( E \), and \( C \) represent. However, since we do not have specified values for \( A \), \( E \), and \( C \), we can express \( X \) in terms of those variables.
Rearranging the equation gives us:
\[ X = (16 + C + 4) - A - E \]
Simplifying further:
\[ X = 20 + C - A - E \]
Thus, without specific values for \( A \), \( E \), and \( C \), the value of \( X \) can be expressed as \( 20 + C - A - E \). If you provide specific values for \( A \), \( E \), and \( C \), I can find a numerical value for \( X \).