Question:
Solve -186*o = -1293 - 9 for o..

Answer:
7

Question:
Solve -422*b + 3065 = 202*b - 11*b for b..

Answer:
5

Question:
Solve 7326 + 15579 = -509*z - 1018*z for z..

Answer:
-15

Question:
Solve -118*q + 643*q = 3150 for q..

Answer:
6