Question:
Solve 25383146*b = 25383363*b + 27559 for b..

Answer:
-127

Question:
Solve -724 - 931 = 91*a - 108 for a..

Answer:
-17

Question:
Solve 0 = -393*y + 6849281 - 6815876 for y..

Answer:
85

Question:
Solve -165*r - 36185 = -1387*r + 5363 for r..

Answer:
34