QUESTION: Math problem: Solve -6 = -19900*z + 19906*z for z.
ANS: -1
QUESTION: Math problem: Solve 12 = -8*u + 12*u for u.
ANS: 3
QUESTION: Math problem: Solve 264*i - 583*i + 306 = -285*i for i.
ANS: 9
QUESTION: Math problem: Solve -247 = 325*u - 900 - 1297 for u.
ANS:
6