Write down the solution for this math problem: Solve -109365 = -162*b - 61148 - 66361 for b.
answer: -112

Write down the solution for this math problem: Solve 7367 + 12129 - 5573 = -357*s for s.
answer: -39

Write down the solution for this math problem: Solve -13*u = 7*u + 60 for u.
answer: -3

Write down the solution for this math problem: Solve -6*n + 693 = 27*n for n.
answer:
21