QUESTION: Math problem: Solve -7776*l + 3780 = -7596*l for l.
ANS: 21
QUESTION: Math problem: Solve 313*s - 4523 - 645 = 636*s for s.
ANS: -16
QUESTION: Math problem: Solve -6*m + 5 - 17 = 0 for m.
ANS: -2
QUESTION: Math problem: Solve 20*a + 828 = -9*a + 306 for a.
ANS:
-18