QUESTION: Math problem: Solve 0 = 330*l - 202*l + 384 for l.
ANS: -3
QUESTION: Math problem: Solve 3950 = 10*w + 3990 for w.
ANS: -4
QUESTION: Math problem: Solve 125*f = 108*f - 136 for f.
ANS: -8
QUESTION: Math problem: Solve 45*u + 75*u - 27871 + 31231 = 0 for u.
ANS:
-28