QUESTION: Math problem: Solve 224*v - 3760 = 496 for v.
ANS: 19
QUESTION: Math problem: Solve -187 = 19*c - 1 + 156 for c.
ANS: -18
QUESTION: Math problem: Solve -52 - 52 = 30*u + 16 for u.
ANS: -4
QUESTION: Math problem: Solve -67*f + 513 = -90 for f.
ANS:
9