Question: What is the solution?

Solve 101*k - 121*k = -100 for k.

Answer: 5

Question: What is the solution?

Solve 7*d = 75*d - 8*d - 1260 for d.

Answer: 21

Question: What is the solution?

Solve -1598*u = -1612*u for u.

Answer: 0

Question: What is the solution?

Solve 0 = 58*m - 54*m + 16 for m.

Answer:
-4