Answer
same lines all are having the common point.
Work Step by Step
We will have to re-arrange the given equations as:
$x+2y=3$ and $4x+8y=12$
Need to apply Cramer's Rule.
$x=\dfrac{D_x}{D}$; $y=\dfrac{D_y}{D}$
Now, $D=\begin{vmatrix}1&2\\4&8\end{vmatrix}=8-8=0$;
$D_x=\begin{vmatrix}3&2\\12&8\end{vmatrix}=0$;
$D_y=\begin{vmatrix}1&3\\4&12\end{vmatrix}=0$
Hence, we get same lines all are having the common point.