For What Value Of $x$ Are $16 \vec{i}-12 \vec{j}+4 \vec{k}$ And $x \vec{i}-(x-1) \vec{j}+\vec{k}$

For what value of $x$ are $16 \vec{i}-12 \vec{j}+4 \vec{k}$ and $x \vec{i}-(x-1) \vec{j}+\vec{k}$ parallel?