QUESTION: Math problem: Solve 3 = 400*u - 399*u for u.
ANS: 3
QUESTION: Math problem: Solve -331*c - 828 = -423*c for c.
ANS: 9
QUESTION: Math problem: Solve 4132*x + 194575 + 74160 = 67808 - 195745 for x.
ANS: -96
QUESTION: Math problem: Solve -55*c + 27265 = 357*c + 253*c for c.
ANS:
41