Question:
Solve 3537*f - 558*f - 8055 = -3687 + 7548 for f..

Answer:
4

Question:
Solve 23 = -5*d + 28*d for d..

Answer:
1

Question:
Solve 77*h + 4 = 75*h for h..

Answer:
-2

Question:
Solve 12296*m = 12193*m + 206 for m..

Answer:
2