$\"\"$

The expression is $\"\"$ .

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

To subtract an integer , add its opposite.

Opposite of $\"\"$ is $\"\"$ .

$\"\"$ (Add $\"\"$ to $\"\"$ )

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

To subtract an integer , add its opposite.

Opposite of $\"\"$ is 6.

$\"\"$ (Add 6 to $\"\"$ )

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

The value of the expression when $\"\"$ is $\"\"$ .