Question:
Solve -4*f + 17*f = 52 for f..

Answer:
4

Question:
Solve -5 = -23*o + 18*o for o..

Answer:
1

Question:
Solve 12*y = -2*y + 23*y for y..

Answer:
0

Question:
Solve 7422 = -47*n + 275*n + 1494 for n..

Answer:
26