Question: What is the solution?

Solve 9169 = 567*c - 4120 - 6556 for c.

Answer: 35

Question: What is the solution?

Solve -2*z - 107 + 119 = 0 for z.

Answer: 6

Question: What is the solution?

Solve 153*u - 3996 - 921 = -1245 for u.

Answer: 24

Question: What is the solution?

Solve -66 = 15*i + 39 for i.

Answer:
-7