Write down the solution for this math problem: Solve 5*k - 23 = -28 for k.
answer: -1

Write down the solution for this math problem: Solve 365*d + 8932 = -41*d for d.
answer: -22

Write down the solution for this math problem: Solve 964*d = 242*d + 19389 + 105 for d.
answer: 27

Write down the solution for this math problem: Solve 42 - 48 = 6*d for d.
answer:
-1