Write down the solution for this math problem: Solve 0 = 4*v + 876 - 836 for v.
answer: -10

Write down the solution for this math problem: Solve 60*b + 165 = 645 for b.
answer: 8

Write down the solution for this math problem: Solve -6*b = 11*b - b - b for b.
answer: 0

Write down the solution for this math problem: Solve -58377*u + 58381*u + 84 = 0 for u.
answer:
-21