Question:
Solve -220 - 406 = 10*f - 476 for f..

Answer:
-15

Question:
Solve 3501508*p - 406 = 3501515*p for p..

Answer:
-58

Question:
Solve 0 - 75 = -15*z for z..

Answer:
5

Question:
Solve 226*m - 1380 = -175 + 289 - 138 for m..

Answer:
6