QUESTION: Math problem: Solve -109 = -6*p - 115 for p.
ANS: -1
QUESTION: Math problem: Solve -7*c + 8 = -20 for c.
ANS: 4
QUESTION: Math problem: Solve -130 + 8 = 173*u + 51 for u.
ANS: -1
QUESTION: Math problem: Solve -7*s + 32*s = 17*s - 104 for s.
ANS:
-13