QUESTION: Math problem: Solve 16*j + 77*j - 279 = 0 for j.
ANS: 3
QUESTION: Math problem: Solve -16097 = 11*o - 16141 for o.
ANS: 4
QUESTION: Math problem: Solve 26018 = 2512*s + 3077 - 47395 for s.
ANS: 28
QUESTION: Math problem: Solve -5*r + 139 = 174 for r.
ANS:
-7