x + y = 4
x – y = 8->(6, -2)
x + y = 6
2x + y = 10->(4, 2)
3x + y = -3
3x + 2y = -6->(3, -3)
x + 2y = -1
x + y = -3->(-5, 2)
x + 3y = 6
x + 4y = 8->(0, 2)
x = 3
y = 3->(3, 3)
x + y = -1
x – y = -1->(0, -1)
2x – 2y = 4
-3x – 3y = 3->(8, 2)
x – 2y = 1
x + 2y = 3->(0, 0)
2x – 8y = 24
4x + 8y = 24->(8, -1)
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