QUESTION: Math problem: Solve 15 = -1729*c + 1734*c for c.
ANS: 3
QUESTION: Math problem: Solve 3146*u - 1525 = 2991*u + 1265 for u.
ANS: 18
QUESTION: Math problem: Solve 0 = -77*n + 12*n for n.
ANS: 0
QUESTION: Math problem: Solve -8 = 4*r - 12*r for r.
ANS:
1