Question: What is the solution?

Solve -160*u = -63*u - 388 for u.

Answer: 4

Question: What is the solution?

Solve 6597 = 3197*b - 332285 for b.

Answer: 106

Question: What is the solution?

Solve 659*t - 669*t - 140 = 0 for t.

Answer: -14

Question: What is the solution?

Solve -105*d = 154*d + 2*d - 2610 for d.

Answer:
10