Mark M. answered 01/17/15
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Retired math prof. Very extensive Precalculus tutoring experience.
(2x)/(x + 1) = (2x - 1)/x
Cross multiplying, we get 2x2 = (x + 1)((2x - 1)
2x2 = 2x2 - x + 2x - 1
2x2 = 2x2 + x - 1
0 = x - 1
x = 1