Write down the solution for this math problem: Solve 123*h - 4431 = 39*h - 127*h for h.
answer: 21

Write down the solution for this math problem: Solve -122*v = 17*v + 247 + 31 for v.
answer: -2

Write down the solution for this math problem: Solve 48564 - 23340 = 3621*n + 3797*n - 108300 for n.
answer: 18

Write down the solution for this math problem: Solve -19*q + 247 = -0*q - 342 for q.
answer:
31