Write down the solution for this math problem: Solve -19*k + 320 + 457 = -130*k for k.
answer: -7

Write down the solution for this math problem: Solve 296*p + 1786 + 1011 = 6349 for p.
answer: 12

Write down the solution for this math problem: Solve -1165*u = 530*u + 16950 for u.
answer: -10

Write down the solution for this math problem: Solve -7*i = -9*i - 2 for i.
answer:
-1