Question:
Solve 0 = 33*k - 5*k + 196 for k..

Answer:
-7

Question:
Solve -35*f = 892 - 122 for f..

Answer:
-22

Question:
Solve 0 = -61*h + 64*h + 6 for h..

Answer:
-2

Question:
Solve 0 = -104*o + 98*o + 18 for o..

Answer:
3