Question: What is the solution?

Solve 1886*s = 1910*s - 71 - 145 for s.

Answer: 9

Question: What is the solution?

Solve 0 = -4*t - 3 - 1 for t.

Answer: -1

Question: What is the solution?

Solve -2526929 = 55*t - 2527754 for t.

Answer: 15

Question: What is the solution?

Solve -3582*l - 198114 + 43800 = 150156 for l.

Answer:
-85