Question: What is the solution?

Solve -290 - 1222 = -21*p + 189*p for p.

Answer: -9

Question: What is the solution?

Solve 0 = 781*x - 8209 - 8973 for x.

Answer: 22

Question: What is the solution?

Solve -60 = -330*i + 340*i for i.

Answer: -6

Question: What is the solution?

Solve 78*n = -1364 + 1988 for n.

Answer:
8