$\"\"$ $\"\"$ $\"\"$

The expression is $\"\"$ .

$\"\"$ (Apply commutative property of addition: a + b = b + a) \ \

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

According to subtraction property of equality: Subtract 4 from each side.

$\"\"$

$\"\"$ (Additive inverse property: $\"\"$ )

$\"\"$ (Additive identity property: $\"\"$ )

$\"\"$ (Subtract: $\"\"$ ) $\"\"$

Apply division property of equality: Divide each side by 8.

$\"\"$

$\"\"$ (Cancel common terms) $\"\"$

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