Given the system of equations :
[tex]\begin{gathered} 3y=x-9\rightarrow(1) \\ y=-x+1\rightarrow(2) \end{gathered}[/tex]we will use the graph method to find the solution of the system :
The graph of the system is as shown in the following picture
The graph of the equation 1 is the blue line
The graph of the second equation is the red line
As shown the solution is the point ( 3 , -2 )
