QUESTION: Math problem: Solve -5*r = -42*r - 39*r for r.
ANS: 0
QUESTION: Math problem: Solve 113052 = -89*p + 114565 for p.
ANS: 17
QUESTION: Math problem: Solve 216*s - 2190 = 289*s for s.
ANS: -30
QUESTION: Math problem: Solve 9*w + 16 = 1 + 105 for w.
ANS:
10