Question: What is the solution?

Solve 876*z - 1862*z + 6760 = -817*z for z.

Answer: 40

Question: What is the solution?

Solve 89 - 35 = 9*j for j.

Answer: 6

Question: What is the solution?

Solve 916*u - 617 - 9459 = 0 for u.

Answer: 11

Question: What is the solution?

Solve 0 = -6*d + 10*d - 8 for d.

Answer:
2