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

[EX Q]: Problem: if | x - 9 | = 3 x , then x = ?
[EX A]: - 4.

[EX Q]: Problem: what is the dividend . divisor 13 , the quotient is 17 and the remainder is 1
[EX A]: 222

[EX Q]: Problem: if the sides of a cube are in the ratio 9 : 7 . what is the ratio of their diagonals ?
[EX A]:
9 : 7