Write down the solution for this math problem: Solve 973*i - 824*i + 909 = -1326 for i.
answer: -15

Write down the solution for this math problem: Solve -39*f + 998 - 101 = 0 for f.
answer: 23

Write down the solution for this math problem: Solve 39*o - 6*o - 32*o + 5922 = -140*o for o.
answer: -42

Write down the solution for this math problem: Solve -75*f = -80*f + 10 for f.
answer:
2