Write down the solution for this math problem: Solve 6*q + 21 = 35 + 76 for q.
answer: 15

Write down the solution for this math problem: Solve -7487 = -859*a - 13806 - 13438 for a.
answer: -23

Write down the solution for this math problem: Solve -52637*k + 686 = -52623*k for k.
answer: 49

Write down the solution for this math problem: Solve -54*x - 568 = 347 + 327 for x.
answer:
-23