Some values for two linear equations are shown in the tables. What is the solution to the system of equations?
Equation 1 Equation 2
х
y
5
2
11
х
y
5
-31-13
0 -4
-4
-7
5
11
-1
-1
1
1
a
Oь
(5, 11)
(-1,1)
(3,5)
(2,3)
0
С
Od

If this figure is symmetric (as it seems to be) then is invariant to rotations of  90° in the plane where the center of each segment coincides with an axis, and when the axis of rotation is on the center of the figure.

So the rotation of 0°, the rotation of 90° and the rotation of 180° are possible solutions.

Here 180° because if you rotate the figure by 90° two times, you get 180°.