QUESTION: Math problem: Solve 400 = 86*l - 35 - 855 for l.
ANS: 15
QUESTION: Math problem: Solve 0 = -4168*f - 3251*f - 207732 for f.
ANS: -28
QUESTION: Math problem: Solve 22782*c - 22800*c = -72 for c.
ANS: 4
QUESTION: Math problem: Solve 0 = 7*i + 24*i + 1776 - 1218 for i.
ANS:
-18