已知$\frac{5}{x}=\frac{3}{2}$，那么$x$的值是

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                                                             know,  later,  again, have,  live,  one,  meet,  the, do, same
   One day the famous scientist Albert Einstein ____  an old friend of his in the street in New York. “ Mr Einstein,” said ____  friend, “ you need to ____  a new coat. “It ____ matter.” Answered Einstein. “ Nobody ____  me here in New York.”
   Several years ____ , they met in New York ____ . Einstein had become a world-famous physicist by then, but he was still wearing the ____  old coat. Once more his friend tried to persuade him to buy a new____ . “There’s no need now,” said Einstein. “ I have ____  here for a long time. Everybody here knows me.”

____

如图，在正方形ABCD中，AB=4，E，F分别是边BC，CD边上的动点，且AE=AF，设△AEF的面积为y，EC的长为x．