Question: What is the solution?

Solve 4284 = -957303*u + 957235*u for u.

Answer: -63

Question: What is the solution?

Solve -18*f + 24 = -6*f for f.

Answer: 2

Question: What is the solution?

Solve -1101 + 262 = -2257*r - 1988 - 3365 for r.

Answer: -2

Question: What is the solution?

Solve 11*q - 13 = -2*q for q.

Answer:
1