Question:
Solve 0 = 139*b - 147*b - 24 for b..

Answer:
-3

Question:
Solve -76*o - 59 = 777 for o..

Answer:
-11

Question:
Solve 0 = 436*k + 11854 - 21882 for k..

Answer:
23

Question:
Solve -9*q + 445 = 490 for q..

Answer:
-5