Question: What is the solution?

Solve 152 = -64*x + 45*x for x.

Answer: -8

Question: What is the solution?

Solve -495 - 3158 = 114*t + 3529 for t.

Answer: -63

Question: What is the solution?

Solve 0 = 8289*u - 8276*u + 39 for u.

Answer: -3

Question: What is the solution?

Solve 2595 + 225 - 247 = -542*c - 679 for c.

Answer:
-6