Question: What is the solution?

Solve -15*n = 1587 - 1467 for n.

Answer: -8

Question: What is the solution?

Solve 783*o = 555*o + 6612 for o.

Answer: 29

Question: What is the solution?

Solve -898 + 5728 = -483*a for a.

Answer: -10

Question: What is the solution?

Solve -1406*c + 649 - 23145 = 0 for c.

Answer:
-16