Write down the solution for this math problem: Solve 637 - 611 = 13*y for y.
answer: 2

Write down the solution for this math problem: Solve 29*n + 24 = 5*n for n.
answer: -1

Write down the solution for this math problem: Solve 1924*v + 168090 + 121950 - 55312 = 0 for v.
answer: -122

Write down the solution for this math problem: Solve -20*u - 87*u - 1360 = -22*u for u.
answer:
-16