[tex]y - 2 = x.................(eq. \: 1)[/tex]
[tex]y = - x.......................(eq .\: \: 2)[/tex]
[tex] - x - 2 = x[/tex]
[tex]x + x = - 2[/tex]
[tex]2x = - 2[/tex]
[tex]x = \frac{2}{2} [/tex]
[tex]x = - 1[/tex]
[tex]y = - ( - 1)[/tex]
[tex]y =1[/tex]