Given any fraction a, use (a) to represent the largest integer not exceeding a, then the solution of the equation (((11x-2)/5))=((8x+4)/7) is x=what.
任给一个分数a，用(a)表示不超过a的最大整数，则方程(((11x-2)/5))=((8x+4)/7)的解是x=多少．
<result>3</result>