Q: What is the solution?
Solve 646*y - 4967 - 5615 = 165*y for y.

A: 22

Q: What is the solution?
Solve -5*t = -15*t - 20 for t.

A: -2

Q: What is the solution?
Solve -34 - 46 = 40*o for o.

A:
-2