Question:
Solve 195*f = -221*f - 32*f - 68*f - 2064 for f..

Answer:
-4

Question:
Solve 231*m - 667 + 3464 = -899 for m..

Answer:
-16

Question:
Solve 0 = 446*s + 1734 + 8496 - 2202 for s..

Answer:
-18

Question:
Solve 85*y + 709 = 165 - 306 for y..

Answer:
-10