Answer
$y=\frac{x-10}{2}$.
Work Step by Step
The given equation is
$\Rightarrow 2x-4y=20$
Subtract $2x$ from each side.
$\Rightarrow 2x-4y-2x=20-2x$
Simplify.
$\Rightarrow -4y=20-2x$
Divide both sides by $-4$.
$\Rightarrow \frac{-4y}{-4}=\frac{20-2x}{-4}$
Simplify.
$\Rightarrow y=\frac{20-2x}{-4}$
$\Rightarrow y=\frac{-2(-10+x)}{-4}$
$\Rightarrow y=\frac{x-10}{2}$
Hence, the rewritten literal equation is $y=\frac{x-10}{2}$.
