Write down the solution for this math problem: Solve 16*o = 12745 - 12889 for o.
answer: -9

Write down the solution for this math problem: Solve 0 = 125*l - 973 + 98 - 0 for l.
answer: 7

Write down the solution for this math problem: Solve 173*f + 97 + 800 = 104*f for f.
answer: -13

Write down the solution for this math problem: Solve 16*b - 14 = 30*b for b.
answer:
-1