Question: What is the solution?

Solve 17*n = 16*n + 7 for n.

Answer: 7

Question: What is the solution?

Solve -7*k - 18*k + 70 = -180 for k.

Answer: 10

Question: What is the solution?

Solve 13182*d = 13121*d - 549 for d.

Answer: -9

Question: What is the solution?

Solve 1057*s - 4124*s - 1238*s + 232470 = 0 for s.

Answer:
54