Question:
Solve 0 = -69411*q + 69357*q + 864 for q..

Answer:
16

Question:
Solve 507777 - 508569 = -33*i for i..

Answer:
24

Question:
Solve 54*s - 43*s + 55 = 0 for s..

Answer:
-5

Question:
Solve 0 = -417*s + 753*s for s..

Answer:
0