If \( x = 20^{1/4} \), we can rewrite any equation involving \( 20^{1/4} \) as \( x \).
For example, if we had an equation like:
\[ y = 20^{1/4} + 5 \]
By substituting \( 20^{1/4} \) with \( x \), the equation would become:
\[ y = x + 5 \]
If you have a specific equation from the previous answer box you'd like to substitute \( 20^{1/4} \) with \( x \), please provide that equation, and I'll rewrite it accordingly!