\"\"

\

The expression is  \"\".

\

Rewrite \"\" is \"\"

\

\"\"            (Substitute \"\")\"\"

\

(Apply distributive property: \"\")

\

\"\"          (Distribute 6) \ \

\

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

\

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

\

The value of the expression is 54.6.