Question: What is the solution?

Solve 0 = -4424*r - 42543 - 492761 for r.

Answer: -121

Question: What is the solution?

Solve -6*o - 7*o = 26 for o.

Answer: -2

Question: What is the solution?

Solve -69*v + 93*v - 168 = 0 for v.

Answer: 7

Question: What is the solution?

Solve 46*u - 3*u + 43 = 0 for u.

Answer:
-1