#### Answer

$\left\{x|x \text{ is a real number}\right\}$.

#### Work Step by Step

Distribute $2$ (on the left side of the equation) and combine like terms on the right side of the equation:
$2x+8 = 2x+8$
Solve the equation to obtain:
$2x-2x=8-8
\\0=0$
This is a true statement. Thus, any real number will satisfy the given equation.
The solution set is $\left\{x|x \text{ is a real number}\right\}$.