Help! How do you find y = 3x + 2 and y = -x -6 numerically? To be able to graph on a chart. The given answer was (-1,-5). How do u work this problem out?

y = 3x + 2 and y = -x -6 so 3x+2=-x-6⇔4x=-8⇔x=-2⇒y=3(-2)+2=-6+2=-4 so you have a point on the graph: A(x,y)=A(-2,-4) wich is the intersection of those 2 ecuation