Question: What is the solution?

Solve -108 = -42*i - 486 for i.

Answer: -9

Question: What is the solution?

Solve 7644*d - 237695 - 320317 = 0 for d.

Answer: 73

Question: What is the solution?

Solve -192*u - 270 = -102*u for u.

Answer: -3

Question: What is the solution?

Solve 0 = 88*v + 378 + 25 + 125 for v.

Answer:
-6