Q: Solve -186*t = -123*t + 738*t + 9612 for t.

A: -12

Q: Solve -2*q + 15 = q for q.

A: 5

Q: Solve -871*n + 1846*n = 859*n - 2436 for n.

A: -21

Q: Solve 14727*r + 150 = 14802*r for r.

A:
2