QUESTION: Math problem: Solve 510698 = -94*r + 507408 for r.
ANS: -35
QUESTION: Math problem: Solve 0 = 249*v - 220*v - 116 for v.
ANS: 4
QUESTION: Math problem: Solve k - 56 = -58 for k.
ANS: -2
QUESTION: Math problem: Solve 1930*c + 324515 = -1629*c - 2472*c + 77244 for c.
ANS:
-41