QUESTION: Math problem: Solve 4267 - 1387 = -192*u for u.
ANS: -15
QUESTION: Math problem: Solve 90653*b = 90722*b - 2760 for b.
ANS: 40
QUESTION: Math problem: Solve -645 - 221 - 74 = 47*z for z.
ANS: -20
QUESTION: Math problem: Solve 0 = 163*o - 12 - 151 for o.
ANS:
1