Question: What is the solution?

Solve -417 - 1767 = -7039*z + 7130*z for z.

Answer: -24

Question: What is the solution?

Solve -29*u + 16*u = 19*u for u.

Answer: 0

Question: What is the solution?

Solve -204*t + 2051 = -1597 + 996 for t.

Answer: 13

Question: What is the solution?

Solve 7*c - 43 - 107 = -17 for c.

Answer:
19