Write down the solution for this math problem: Solve 23 - 48 = 5*w for w.
answer: -5

Write down the solution for this math problem: Solve 33 = -33*k - 0 for k.
answer: -1

Write down the solution for this math problem: Solve -407*y + 208*y + 2189 = 0 for y.
answer: 11

Write down the solution for this math problem: Solve -387*o - 212 = -334*o for o.
answer:
-4