Question:
Solve 286*i + 318*i - 460 = 584*i for i..

Answer:
23

Question:
Solve 53*u + 90 = 35*u for u..

Answer:
-5

Question:
Solve -1479*m + 730*m = -733*m - 128 for m..

Answer:
8

Question:
Solve -8736*f - 3926 = -8887*f for f..

Answer:
26