Question: What is the solution?

Solve -85*u - 129*u - 314*u - 4900 = 908 for u.

Answer: -11

Question: What is the solution?

Solve 1703*r + 20389 = -6859 for r.

Answer: -16

Question: What is the solution?

Solve -1329*l = 988*l - 2625*l - 10780 for l.

Answer: -35

Question: What is the solution?

Solve 12052*b - 13446 = 11890*b for b.

Answer:
83