Question:
Solve 12*q = 19*q - 56 for q..

Answer:
8

Question:
Solve -2*s = -12*s + 30 for s..

Answer:
3

Question:
Solve 0 = -3439*j + 552*j - 13605*j - 230668 - 577440 for j..

Answer:
-49

Question:
Solve 672 = -107*b + 23*b for b..

Answer:
-8