Q: What is the solution?
Solve 31*t = 19*t - 12 for t.

A: -1

Q: What is the solution?
Solve 5*y - 310 = -270 for y.

A: 8

Q: What is the solution?
Solve -291*c - 61*c - 1902 = -35*c for c.

A:
-6