QUESTION: Math problem: Solve 315*r - 7595 = -1438*r + 234*r for r.
ANS: 5
QUESTION: Math problem: Solve -2*o - o + 673 = -16*o + 1167 for o.
ANS: 38
QUESTION: Math problem: Solve 179 - 50 = 43*r for r.
ANS: 3
QUESTION: Math problem: Solve 332836*k - 169 = 332849*k for k.
ANS:
-13