Write down the solution for this math problem: Solve -421*q - 2036*q = -300*q + 84123 for q.
answer: -39

Write down the solution for this math problem: Solve -1480*n + 66514 - 26554 = 0 for n.
answer: 27

Write down the solution for this math problem: Solve -2 = -4*o + 6 for o.
answer: 2

Write down the solution for this math problem: Solve -420*i - 578*i + 4144 = -850*i for i.
answer:
28