Write down the solution for this math problem: Solve -43568 = -68*f - 42276 for f.
answer: 19

Write down the solution for this math problem: Solve -132*f + 3453 + 3107 = 196*f for f.
answer: 20

Write down the solution for this math problem: Solve -39*b + 32*b + 1188 = 47*b for b.
answer: 22

Write down the solution for this math problem: Solve 0 = -139*x + 324 - 270 - 1166 for x.
answer:
-8