Question:
Solve -13*f = 33 - 72 for f..

Answer:
3

Question:
Solve 6*z = 7*z + 2 for z..

Answer:
-2

Question:
Solve -24*b = -106*b - 656 for b..

Answer:
-8

Question:
Solve 4943*n - 33186 = -14410 + 94913 for n..

Answer:
23