[tex] \left \{ {{3=6x-y\ \ |*(-2)} \atop {3x-2y=24}} \right. \\\\ \left \{ {{-6=-12x+2y} \atop {24=3x-2y}} \right. \\+----\\add\ both\ equations\\\\
18=-9x\ \ \ | divide\ by\ -9\\\\
x=-2\\\
y=6x-3=6*(-2)-3=-12-3=-15\\\\
Point\ of\ intersection:\ (-2,-15)[/tex]
