Answer
$x=t,y=-2t+4$, $-\infty\lt t\lt \infty$ or
$y=t, x=\frac{4-t}{2}$, $-\infty\lt t\lt \infty$
Work Step by Step
Answer may vary.
1. Let $x=t$, we have $y=-2t+4$, $-\infty\lt t\lt \infty$ or
2. Let $y=t$, we have $x=\frac{4-t}{2}$, $-\infty\lt t\lt \infty$
