QUESTION: Math problem: Solve 77*o + 355 + 646 = 0 for o.
ANS: -13
QUESTION: Math problem: Solve 0 = -255*r - 226*r + 38961 for r.
ANS: 81
QUESTION: Math problem: Solve 97 = 62*c - 12*c - 3 for c.
ANS: 2
QUESTION: Math problem: Solve -7*g + 173*g = -1992 for g.
ANS:
-12