Write down the solution for this math problem: Solve 2*h - 5 + 7 = 0 for h.
answer: -1

Write down the solution for this math problem: Solve -3*a + 33 = 8*a for a.
answer: 3

Write down the solution for this math problem: Solve 216 = -31*u + 4*u for u.
answer: -8

Write down the solution for this math problem: Solve -38638*a + 38472*a + 709 = -1775 + 160 for a.
answer:
14