Question: What is the solution?

Solve 5*z - 1 - 19 = 0 for z.

Answer: 4

Question: What is the solution?

Solve -7487790*q = -7487794*q - 48 for q.

Answer: -12

Question: What is the solution?

Solve 28341*u = 14284*u + 14268*u - 27219 for u.

Answer: 129

Question: What is the solution?

Solve 53*w - 110*w - 50*w - 321 = 0 for w.

Answer:
-3