In general, to graph a line on the plane, find two points on it and cross them using a straight line.
Finding two points of each of the two lines
[tex]\begin{gathered} y=3x-1 \\ x=1\Rightarrow y=2 \\ \Rightarrow(1,2) \\ x=0\Rightarrow y=-1 \\ \Rightarrow(0,-1) \end{gathered}[/tex]
And
[tex]\begin{gathered} y=-3x-7 \\ x=0\Rightarrow y=-7 \\ \Rightarrow(0,-7) \\ x=1\Rightarrow y=-10 \\ \Rightarrow(1,-10) \end{gathered}[/tex]
Thus, the graphs are
y=3x-1
y=-3x-7
Graph both lines at the same time, the intersection point is the solution to the system
Thus, the solution is (x,y)=(-1,-4)
