Question: What is the solution?

Solve -84*u - 87*u + 136 = -179*u for u.

Answer: -17

Question: What is the solution?

Solve 19308 = 839*l + 62936 for l.

Answer: -52

Question: What is the solution?

Solve 0 = -684*h + 747*h + 567 for h.

Answer: -9

Question: What is the solution?

Solve 0 = 38*z - 165 - 25 for z.

Answer:
5