Question:
Solve 0 = -39*f + 112*f - 657 for f..

Answer:
9

Question:
Solve 0 = -34*o + 50771 - 49819 for o..

Answer:
28

Question:
Solve 4*t + 19*t - 24 = -277 for t..

Answer:
-11

Question:
Solve 0 = 164*p - 148*p - 32 for p..

Answer:
2