There is no solution.
Work Step by Step
$2(a-4)=4a-(2a+4) \\\\ 2a-8=4a-2a-4 \\\\ 2a-8=2a-4 \\\\ -4=-8$ We first use the distributive property on both sides of the equation to simplify. We then combine like terms on the right side. Next, we subtract by 2a on both sides. This gives us: -4=-8. This is never true, so there is no solution.