\"\"

\

The expression is  \"\".

\

Rewrite \"\" is \"\".

\

\"\"               (Substitute \"\")\"\"

\

(Apply distributive property: \"\")

\

\"\"      (Distribute 4) \ \

\

\"\"                      (Multiply: \"\")

\

\"\"                              (Add: \"\")\"\"

\

The value of the expression is 24.6.