The task is to generate the correct answer for a given math problem.

Input: Consider Input: Problem: solve the equation for x : 6 x - 47 + 3 x = 4 + 9 - x

Output:

Input: Consider Input: Problem: . 005 / ? = . 01

Output: . 5

Input: Consider Input: Problem: at a school , 3 - fifths of the male students and two - thirds of the female students speak a foreign language . if the number of males is equal to the number of females , what fraction of the students speak a foreign language ?
Output: 19 / 30