$\"\"$

The equation is $\"\"$ .

Apply division property of equality: Divide each side by 4.

$\"\"$

$\"\"$ (Cancel common terms)

$\"\"$ (Divide: $\"\"$ ) $\"\"$

$\"\"$ (Multiply each side by negative one)

$\"\"$ (Product of two same signs is positive)

$\"\"$ (Multiply: $\"\"$ ) $\"\"$

Check:

To check the solution, substitute $\"\"$ in original equation.

$\"\"$

$\"\"$ (Multiply: $\"\"$ )

The statement is true. $\"\"$

The value of $\"\"$ .