Q: Solve:
Solve 50*r - 61*r - 6192 = 376*r for r.

A: -16

Q: Solve:
Solve -85*r + 56*r = 29 for r.

A: -1

Q: Solve:
Solve 5*t + 1938 = 99*t + 1374 for t.

A:
6