$\"\"$

The words $\"\"$ sum or increased $\"\"$ means addition operation and its symbol is $\"\"$ .

The word $\"\"$ less than $\"\"$ means subtraction operation and its symbol is $\"\"$ .

The word $\"\"$ the sum of 6 and x $\"\"$ represents $\"\"$ .

The word $\"\"$ twice the sum of 6 and x $\"\"$ represents $\"\"$ .

The word $\"\"$ 5 less than x $\"\"$ represents $\"\"$ .

The word $\"\"$ twice the sum of 6 and x, increased by 5 less than x $\"\"$ represents $\"\"$ . $\"\"$

The expression is $\"\"$ .

Apply distributive property: $\"\"$ .

$\"\"$

Group like terms.

$\"\"$

Combine like terms.

$\"\"$ . $\"\"$

The expression is $\"\"$ and simplified expression is $\"\"$ .