Write down the solution for this math problem: Solve 40*a - 18*a - 8*a = -126 for a.
answer: -9

Write down the solution for this math problem: Solve -82*f - 58 = 24 for f.
answer: -1

Write down the solution for this math problem: Solve -q - q = -6 for q.
answer: 3

Write down the solution for this math problem: Solve 102 = -195*v + 687 for v.
answer:
3