If you would like to know what is the solution for the system of equations, you can calculate this using the following steps:
y - x = - 3
y + x = 3
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y - x + y + x = - 3 + 3
2y = 0
y = 0
y - x = - 3
0 - x = - 3
x = 3
(x, y) = (3, 0)
The correct result would be D. (3, 0).
