QUESTION: Math problem: Solve 764*i + 390*i - 13190 = -109562 - 27106 for i.
ANS: -107
QUESTION: Math problem: Solve 50280 = 1508*r - 251*r for r.
ANS: 40
QUESTION: Math problem: Solve 0 = f - 59 + 57 for f.
ANS: 2
QUESTION: Math problem: Solve 338*s - 332*s + 30 = 0 for s.
ANS:
-5