[tex]x + 3y = 5 \\ x + 3y - 3y = 5 - 3y \\ {x = 5 - 3y} \\ \\ 2x - y = - 4 \\ 2x - y + y = - 4 + y \\ 2x = - 4 + y \\ \frac{2x}{2} = - \frac{4}{2} + \frac{y}{2} \\\\\ {x = \frac{ -4 + y}{2} }[/tex]
