3 years ago

X-y= 0

1 answer:

3 0

X + y = -2
x = -2-y

x-y=0
-2-y - y = 0
-2 -2y = 0
-2y = 2
y = -1

x + y = -2
x - 1 = -2
x = -1

Therefore, the coordinates are (-1, -1).

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