Question:
Solve 54*z - 53*z = -9 for z..

Answer:
-9

Question:
Solve 737*b - 7243 + 28363 = 77*b for b..

Answer:
-32

Question:
Solve -499464 - 898685 = 13939*s - 464236 for s..

Answer:
-67

Question:
Solve -1180 = -15*d - 0*d - 1345 for d..

Answer:
-11