Write down the solution for this math problem: Solve 488*u + 3393 = 252*u + 119*u for u.
answer: -29

Write down the solution for this math problem: Solve -199 + 269 = -14*n for n.
answer: -5

Write down the solution for this math problem: Solve 0 = -5*i + 3 - 28 for i.
answer: -5

Write down the solution for this math problem: Solve -813*b + 1834*b - 842*b = -4475 for b.
answer:
-25