QUESTION: Math problem: Solve 0 = -8*c + 2 + 38 for c.
ANS: 5
QUESTION: Math problem: Solve 0 = -275*k + 234*k for k.
ANS: 0
QUESTION: Math problem: Solve -80 - 43 = 15*d + 12 for d.
ANS: -9
QUESTION: Math problem: Solve 159*r - 165*r = -42 for r.
ANS:
7