Question: What is the solution?

Solve 8 - 28 = -10*d for d.

Answer: 2

Question: What is the solution?

Solve -7*m + 105344 - 105568 = 0 for m.

Answer: -32

Question: What is the solution?

Solve -22303 + 30313 = 90*k for k.

Answer: 89

Question: What is the solution?

Solve -2759 - 2624 + 1783 = -200*h for h.

Answer:
18