Question:
Solve -726 = -102*b + 2039 - 725 for b..

Answer:
20

Question:
Solve 0 = 7*h + 7*h - 5*h for h..

Answer:
0

Question:
Solve 449*s - 851*s = -526*s - 10540 for s..

Answer:
-85

Question:
Solve 236*z - 588*z - 16086 = 496*z - 82*z for z..

Answer:
-21