Question:
Solve 5*i + 0 = -0 for i..

Answer:
0

Question:
Solve 56 = -23*f - 427 for f..

Answer:
-21

Question:
Solve -771 = -96*s - 68 + 449 for s..

Answer:
12

Question:
Solve 1075*m = 8269 + 231 + 66750 for m..

Answer:
70