Write down the solution for this math problem: Solve 10*u + 370 = 440 for u.
answer: 7

Write down the solution for this math problem: Solve 124*u - 7323601 = -7333645 for u.
answer: -81

Write down the solution for this math problem: Solve -546 + 1328 = 25*q - 2*q for q.
answer: 34

Write down the solution for this math problem: Solve -6123*h = -4489*h - 4902 for h.
answer:
3