Question: What is the solution?

Solve 30*w = 2136 - 2736 for w.

Answer: -20

Question: What is the solution?

Solve 1730*o - 170 = 1747*o for o.

Answer: -10

Question: What is the solution?

Solve -86*l - 689 = 258 - 259 for l.

Answer: -8

Question: What is the solution?

Solve -109*p + 123*p = -28 for p.

Answer:
-2