QUESTION: Math problem: Solve -631*q - 634*q = -1262*q - 60 for q.
ANS: 20
QUESTION: Math problem: Solve 0 = 11*r - 161 + 172 for r.
ANS: -1
QUESTION: Math problem: Solve -c - 10 + 13 = -5 for c.
ANS: 8
QUESTION: Math problem: Solve 40*i - 25 + 145 = 0 for i.
ANS:
-3