\"\"

\

The expression is \"\".

\

Rewrite \"\" is \"\"

\

\"\"          (Substitute \"\")\"\"

\

(Apply distributive property: \"\")

\

\"\"        (Distribute 3)

\

\"\"                 (Multiply: \"\")

\

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

\

The value of the expression is 21.75.