Question:
Solve -17*f = -26*f + 18 for f..

Answer:
2

Question:
Solve -10*k = -36*k - 31*k + 684 for k..

Answer:
12

Question:
Solve -115*i - 909*i = -13312 for i..

Answer:
13

Question:
Solve 7476*i = 12162*i + 159324 for i..

Answer:
-34