(-3,5)
1) Let's plot those equations, setting a table to find the points
y =x +8
x| y
-1 7
0 8
1 9
y=-2x-1
x|y
-1 1
0 -1
1 -3
2) Now we can plot the graph, tracing lines crossing those points:
3) Since the common point between those lines is point (-3,5) then we can state this system is consistent and has one solution.
