#### Answer

$x=6$

#### Work Step by Step

The original equation is $2x-4=8$.
We need to begin by isolating the variable. We can do so by first adding $4$ to each side.
$2x-4+4=8+4$
Now, the equation should look like this: $2x=12$.
To solve for $x$, divide each side of the equation by $2$ to isolate the variable.
$\frac{2x}{2}=\frac{12}{2}$
$2x\div2$ cancels out the $2$, leaving just $x$.
$12\div2=6$.
Now, you have successfully solved for $x$, where $x=6$.
To check your answer, plug $6$ into the original equation.
$2(6)-4=8$
$12-4=8$
Therefore $x=6$ is correct.