Correct Answer: Option A
x + y = 12
x = 12 - y
substituting this equation in thesecond given equation gives us
12 - y -y =2
2 y = 10
y = 5
substituting y = 5 in any of the given equations give us
x + 5 = 12
x = 7
therefore xy = 7 * 5
xy = 35
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