Question: What is the solution?

Solve -431*i - 53100 = 291*i + 458*i for i.

Answer: -45

Question: What is the solution?

Solve 152*t - 4416 + 4117 + 4502 = -3397 for t.

Answer: -50

Question: What is the solution?

Solve 8*t - 12 = 5*t for t.

Answer: 4

Question: What is the solution?

Solve 9*u = u - 8 for u.

Answer:
-1