QUESTION: Math problem: Solve 25*b - 1005 = 92*b for b.
ANS: -15
QUESTION: Math problem: Solve 40755 = -42316*r + 42943*r for r.
ANS: 65
QUESTION: Math problem: Solve -10*s + 20 = -15*s for s.
ANS: -4
QUESTION: Math problem: Solve 248*f + 38916 = 51*f - 649*f for f.
ANS:
-46