$$\left\{\begin{matrix} 6x-18=-85 \\ 24x-5y=-5 \end{matrix}\right.$$
$x = -\frac{67}{6} = -11\frac{1}{6} \approx -11.166666667$
$y = -\frac{263}{5} = -52\frac{3}{5} = -52.6$
