Write down the solution for this math problem: Solve -5*o - 225 = -235 for o.
answer: 2

Write down the solution for this math problem: Solve 0 = 25*v - 19*v + 6 for v.
answer: -1

Write down the solution for this math problem: Solve 47*u = -63 - 166 - 6 for u.
answer: -5

Write down the solution for this math problem: Solve 9*f - 934 = -1042 for f.
answer:
-12