Latex Coder 4

Find the solution to the following system.
$ \left \{ \begin{array}{cc} {y}={5}{x}+{15}\\{4}{x}-{7}{y}={-43} \end{array} \right. $

A. ${x}={-2}, \;{y}={5}$
B. ${x}={5}, \;{y}={-2}$
C. ${x}={2}, \;{y}={5}$
D. ${x}={-2}, \;{y}={-5}$
E. ${x}={-5}, \;{y}={2}$