Write down the solution for this math problem: Solve 14*q = 2*q - 60 for q.
answer: -5

Write down the solution for this math problem: Solve 42*r + 1540 + 730 - 1472 = 0 for r.
answer: -19

Write down the solution for this math problem: Solve 3490*u - 12440 = 389*u - 37248 for u.
answer: -8

Write down the solution for this math problem: Solve -16*s + 31 = -17 for s.
answer:
3