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

The equation is $\"\"$

According to subtraction property of equality: Subtract $\"\"$ from each side.

$\"\"$

$\"\"$ (Apply additive inverse property: $\"\"$ )

$\"\"$ (Apply additive identity property: $\"\"$ ) $\"\"$

According to multiplication property of equality: Multiply each side by $\"\"$ .

$\"\"$

$\"\"$ (Cancel common terms)

$\"\"$ (Simplify) \ \ $\"\"$

The value of $\"\"$ .