Write down the solution for this math problem: Solve -31 - 77 = 27*p for p.
answer: -4

Write down the solution for this math problem: Solve 34 = -13*f + 8 for f.
answer: -2

Write down the solution for this math problem: Solve 6989 = 2818*b + 15208 + 26717 + 27060 for b.
answer: -22

Write down the solution for this math problem: Solve -30*b = 539 - 389 for b.
answer:
-5