FERMAT 2008 Problem 11

Past Contests FERMAT FERMAT - 2008
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1

If \displaystyle\frac1x=2 and \displaystyle\frac1x+\frac3y=3, then the value of x+y is

Answer Choices
A. 3
B. \frac56
C. \frac73
D. \frac72
E. \frac43