Write down the solution for this math problem: Solve 151 = 5*f - 152 + 23 for f.
answer: 56

Write down the solution for this math problem: Solve -5*s - 43 + 28 = 0 for s.
answer: -3

Write down the solution for this math problem: Solve 180 - 55 = 25*k for k.
answer: 5

Write down the solution for this math problem: Solve -5*g - 15*g - 60 = 0 for g.
answer:
-3