Question:
Solve 0 = -230*n - 127 + 483 + 104 for n..

Answer:
2

Question:
Solve 320*w - 316*w = -8 for w..

Answer:
-2

Question:
Solve -11*f = -14*f for f..

Answer:
0

Question:
Solve 75*k - 60 = 50*k + 55*k for k..

Answer:
-2