9000020903

Identify a true statement related to the solution of the following system in $\mathbb{R}\times \mathbb{R}$. $$\begin{array}{rlrlrlrlrlrlrlrlrlrlrlr}& x^2& +& 4& & y^2& -& & 2x& =& 15& & & & & & & & & & & & \\ & x& -& & & y& +& & 1& =& 0& & & & & & & & & & & & \end{array}$$