Q: What is the solution?
Solve 3*w = 9*w + 3*w + 5*w for w.

A: 0

Q: What is the solution?
Solve 1288*y + 21890 = -633*y - 49187 for y.

A: -37

Q: What is the solution?
Solve -z = -0 + 2 for z.

A:
-2