Question:
Solve -1187*b = -1219*b + 1216 for b..

Answer:
38

Question:
Solve -4603*z - 27587 = -5166*z for z..

Answer:
49

Question:
Solve -236*b = -231*b - 15 for b..

Answer:
3

Question:
Solve 752 = 10*d + 822 for d..

Answer:
-7