Write down the solution for this math problem: Solve 420 + 321 + 525 = 211*f for f.
answer: 6

Write down the solution for this math problem: Solve 287*g + 1087*g + 4946 = -7420 for g.
answer: -9

Write down the solution for this math problem: Solve -26986 = -1420*t + 2834 for t.
answer: 21

Write down the solution for this math problem: Solve -124*o - 781 = -5 + 340 for o.
answer:
-9