$\"\"$

The equation is $\"\"$ .

Apply distributive property of equality: $\"\"$ .

$\"\"$

Apply division property of equality: $\"\"$ then $\"\"$ .

Divide each side by negative 8.

$\"\"$

Cancel common terms.

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

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

$\"\"$

$\"\"$ .

This is true, therefore solution of the equation $\"\"$ is 13. $\"\"$

The solution is 13.