Write down the solution for this math problem: Solve 0 = -20*y - 21 + 1 for y.
answer: -1

Write down the solution for this math problem: Solve 261*q - 247*q + 98 = 0 for q.
answer: -7

Write down the solution for this math problem: Solve 31718 + 29333 + 26789 = 1464*s for s.
answer: 60

Write down the solution for this math problem: Solve -343*c = -83*c + 1045 + 4935 for c.
answer:
-23