Question: What is the solution?

Solve -1849*s - 1623217 + 1613972 = 0 for s.

Answer: -5

Question: What is the solution?

Solve -52*x + 92 = -168 for x.

Answer: 5

Question: What is the solution?

Solve -2431 = 152*u - 15*u + 3871 for u.

Answer: -46

Question: What is the solution?

Solve -4668*d = -4906*d for d.

Answer:
0