QUESTION: Math problem: Solve 253*l + 653*l + 28070 = 20*l + 84*l for l.
ANS: -35
QUESTION: Math problem: Solve -197*b + 1292 = 352 - 1227 for b.
ANS: 11
QUESTION: Math problem: Solve 11 = 7*s - 31 for s.
ANS: 6
QUESTION: Math problem: Solve -98*z - 55 - 141 = 0 for z.
ANS:
-2