Question: What is the solution?

Solve -6680*h = -3589*h + 213279 for h.

Answer: -69

Question: What is the solution?

Solve -11*n - 17*n = 364 for n.

Answer: -13

Question: What is the solution?

Solve 54*r - 19 + 42 = -31 for r.

Answer: -1

Question: What is the solution?

Solve 31*o - 39 = 44*o for o.

Answer:
-3