Question: What is the solution?

Solve 45240 = 298*w + 291*w - 154*w for w.

Answer: 104

Question: What is the solution?

Solve -15*k = -21*k + 12 for k.

Answer: 2

Question: What is the solution?

Solve 4 = 7*x - 17 for x.

Answer: 3

Question: What is the solution?

Solve -230 = -112*v + 32 + 74 for v.

Answer:
3