QUESTION: Math problem: Solve 289057*f + 7908 = 289392*f - 1807 for f.
ANS: 29
QUESTION: Math problem: Solve 3*i = -2*i + i for i.
ANS: 0
QUESTION: Math problem: Solve 0 = -356*s + 354*s - 10 for s.
ANS: -5
QUESTION: Math problem: Solve 80*n + 111*n + 128 = 31*n - 32 for n.
ANS:
-1