QUESTION: Math problem: Solve 8 + 4 = 4*u for u.
ANS: 3
QUESTION: Math problem: Solve 37*p + 2 = 36*p for p.
ANS: -2
QUESTION: Math problem: Solve 4*f = 475 - 463 for f.
ANS: 3
QUESTION: Math problem: Solve 0 = 120*r - 91*r - 174 for r.
ANS:
6