"Substituting x = 3 and y = -6 in the given equation, we get:
4y - 6x = xy
4(-6) - 6(3) = (3)(-6)
-24 - 18 = -18
-42 ≠ -18
Therefore, the given equation is not true for x = 3 and y = -6." (ChatGPT, 2023)
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