QUESTION: Math problem: Solve -1540*f + 2849*f - 1564*f = 2805 for f.
ANS: -11
QUESTION: Math problem: Solve 10 - 8 = -f for f.
ANS: -2
QUESTION: Math problem: Solve 35*p + 38*p = 1533 for p.
ANS: 21
QUESTION: Math problem: Solve -73*f + 16 = -89*f for f.
ANS:
-1