Question:
Solve 2*b = b - 5 for b..

Answer:
-5

Question:
Solve -105*z + 22201 - 12891 = 161*z for z..

Answer:
35

Question:
Solve 211*h + 1176 = 43*h for h..

Answer:
-7

Question:
Solve -2*y - 806 = -804 for y..

Answer:
-1