Question: What is the solution?

Solve 961*d + 231 = 982*d for d.

Answer: 11

Question: What is the solution?

Solve 5*g = 21*g + 364 - 76 for g.

Answer: -18

Question: What is the solution?

Solve y + y = -4*y - 8*y for y.

Answer: 0

Question: What is the solution?

Solve 0 = 143*z + 624*z - 6903 for z.

Answer:
9