Question:
Solve 21257*x = 21344*x - 1566 for x..

Answer:
18

Question:
Solve 0 = 127*b - 441*b + 2512 for b..

Answer:
8

Question:
Solve 14*w + 9 = 23 for w..

Answer:
1

Question:
Solve 7*s - 16 + 9 = 0 for s..

Answer:
1