\"\"

\

The expression is \"\".

\

(Apply distributive property: \"\")

\

\"\"

\

\"\"    (Multiply: \"\")

\

\"\"           (Multiply: \"\")\"\"

\

(Apply commutative property of addition: \"\")

\

\"\"

\

\"\"                    (Add: 10d + 35d = 45d)

\

\"\"                            (Add: 21 + 35 = 56)\"\"

\

The simplified expression value is \"\".