QUESTION: Math problem: Solve 1631 = 7*l + 1617 for l.
ANS: 2
QUESTION: Math problem: Solve -750 = -15*p - 780 for p.
ANS: -2
QUESTION: Math problem: Solve -24*q = -21*q + 15 for q.
ANS: -5
QUESTION: Math problem: Solve 77*i - 10488 = -12259 for i.
ANS:
-23