QUESTION: Math problem: Solve 28742 = 98*o + 15273 + 7981 for o.
ANS: 56
QUESTION: Math problem: Solve 0 = 5*u - 15*u - 40 for u.
ANS: -4
QUESTION: Math problem: Solve 140*a + 4499 = 4082 - 8263 for a.
ANS: -62
QUESTION: Math problem: Solve -23*f - 45 - 57 = 59 for f.
ANS:
-7