Question: What is the solution?

Solve -86*u - 10764 = 8*u + 113*u for u.

Answer: -52

Question: What is the solution?

Solve 838*d - 3024 = 406*d for d.

Answer: 7

Question: What is the solution?

Solve -j + 105 + 0 = -16*j for j.

Answer: -7

Question: What is the solution?

Solve 0 = 3*d - 17*d - 42 for d.

Answer:
-3