\begin{equation}10x+5y=2\textrm{ },\textrm{ }(-10)x+3y=5\end{equation}

\begin{equation}x+2y=3\textrm{ },\textrm{ }-x+6y=-4\end{equation}

\begin{equation}3x-6y=-3\textrm{ },\textrm{ }2x+6y=7\end{equation}

\begin{equation}\frac{1}{2} \times x-\frac{6}{2} \times y=-(\frac{6}{2})\textrm{ },\textrm{ }(-(\frac{1}{2})) \times x+6y=5\end{equation}

\begin{equation}9x-2y=-3\textrm{ },\textrm{ }6x+2y=8\end{equation}

\begin{equation}x+8y=-8\textrm{ },\textrm{ }-x+8y=-8\end{equation}

\begin{equation}4x+y=-8\textrm{ },\textrm{ }3x-y=-3\end{equation}

\begin{equation}9x+9y=2\textrm{ },\textrm{ }9x+6y=7\end{equation}

\begin{equation}(-54)x+6y=8\textrm{ },\textrm{ }9x+4y=4\end{equation}

\begin{equation}10x+3y=4\textrm{ },\textrm{ }3x+9y=7\end{equation}

\begin{equation}4x+y=8\textrm{ },\textrm{ }(-2)x+y=-2\end{equation}

\begin{equation}8x-10y=-8\textrm{ },\textrm{ }3x=9+10y\end{equation}

\begin{equation}x-10y=6\textrm{ },\textrm{ }(-8)x=10y+6\end{equation}

\begin{equation}(-10)x+9y=4\textrm{ },\textrm{ }40x-y=-3\end{equation}

\begin{equation}y-8x=6\textrm{ },\textrm{ }5y-x=3\end{equation}

\begin{equation}(-3)x+y=0\textrm{ },\textrm{ }10x+6y=-5\end{equation}