Write down the solution for this math problem: Solve 952*n + 20899 = -13373 for n.
answer: -36

Write down the solution for this math problem: Solve 142*f + 100*f + 1854 = 644 for f.
answer: -5

Write down the solution for this math problem: Solve 24*w + 22 = -2 for w.
answer: -1

Write down the solution for this math problem: Solve -24*s + 7*s = 306 for s.
answer:
-18