Write down the solution for this math problem: Solve 24*f + 111*f = -810 for f.
answer: -6

Write down the solution for this math problem: Solve -2*f + 24 = -14*f for f.
answer: -2

Write down the solution for this math problem: Solve 102*m + 57*m - 55*m - 76 = -1428 for m.
answer: -13

Write down the solution for this math problem: Solve -3259*m = -3415*m - 6708 for m.
answer:
-43