If (x + y)/(xy) = 1, then y =
(A) x/(x - 1)
(B) x/(x + 1)
(C) (x - 1)/x
(D) (x + 1)/x
(E) x
OA A
Source: Official Guide
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If (x + y)/(xy) = 1, then y =
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BTGmoderatorDC
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Jay@ManhattanReview
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We have (x + y)/(xy) = 1BTGmoderatorDC wrote:If (x + y)/(xy) = 1, then y =
(A) x/(x - 1)
(B) x/(x + 1)
(C) (x - 1)/x
(D) (x + 1)/x
(E) x
OA A
Source: Official Guide
=> x + y = xy
x = xy - y
x = y(x - 1)
y = x/(x - 1)
The correct answer: A
Hope this helps!
-Jay
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Scott@TargetTestPrep
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We can simplify the given equation:BTGmoderatorDC wrote:If (x + y)/(xy) = 1, then y =
(A) x/(x - 1)
(B) x/(x + 1)
(C) (x - 1)/x
(D) (x + 1)/x
(E) x
(x + y)/(xy) = 1
x + y = xy
x = xy - y
x = y(x - 1)
x/(x - 1) = y
Answer: A
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