Solve the system using addition/elimination method. If there is exactly one solution, write as an ordered pair. If not, choose one of the other options.

{5x+3y=152x+2y=6\displaystyle {\left\lbrace\begin{array}{ccccc} {5}{x}&+&{3}{y}&=&-{15}\\-{2}{x}&+&{2}{y}&=&{6}\end{array}\right.}