QUESTION: Math problem: Solve -4*a - 5 = 3 for a.
ANS: -2
QUESTION: Math problem: Solve -8*s - 9*s - 17*s - 25*s - 2537 = 0 for s.
ANS: -43
QUESTION: Math problem: Solve 0 = 6*t - 15 + 45 for t.
ANS: -5
QUESTION: Math problem: Solve -72*r + 65*r - 21 = 0 for r.
ANS:
-3