First it shows 33 points and ok
x+y= 4 (-2)
3x+2y = 9
-2x -2y = -8
3x +2y = 9
x = 1
1+y =9
y = 9-1
y =8
Answer:

Step-by-step explanation:
As long as the two equations represent the same straight line on the coordinate plane (they overlap), there will be infinite many intersections and infinite number of solutions.
Front yard
65+65+45+45=220
Back yard
45+45+35+35=160
220+160=380
380 feet