Write down the solution for this math problem: Solve 31*f + 5 = 67 for f.
answer: 2

Write down the solution for this math problem: Solve -2794 = 851*v + 7418 for v.
answer: -12

Write down the solution for this math problem: Solve 192*a - 1439 = -489*a + 1418 + 3272 for a.
answer: 9

Write down the solution for this math problem: Solve 0 = -6645*l + 55935 + 122284 + 26836 - 12350 for l.
answer:
29