$$\left. \begin{array} { l } { x ^ { 2 } + y ^ { 2 } = ( 2 x ) + x } \\ { x ^ { 2 } + y ^ { 2 } = 3 + 2 x - 2 y } \end{array} \right.$$
$x=3\text{, }y=0$
$x=\frac{3}{5}=0.6\text{, }y=\frac{6}{5}=1.2$
