$$\left. \begin{array} { l } { x + y = y + x , } \\ { x = \frac { - 3 } { 14 } , y = \frac { 1 } { 9 } x = \frac { - 5 } { 8 } , y = \frac { - 2 } { 5 } , \quad ( 2 ) } \end{array} \right.$$
$x=-\frac{3}{14}\approx -0.214285714$
$y=-\frac{1}{42}\approx -0.023809524$
