Write down the solution for this math problem: Solve 47*y + 37*y + 623 - 5909 + 414 = 0 for y.
answer: 58

Write down the solution for this math problem: Solve 34 = -5*r + 44 for r.
answer: 2

Write down the solution for this math problem: Solve 531519*u - 531404*u = 10120 for u.
answer: 88

Write down the solution for this math problem: Solve 0 = -64*a - 506 + 442 for a.
answer:
-1