QUESTION: Math problem: Solve -47 = 11*n - 168 for n.
ANS: 11
QUESTION: Math problem: Solve 24*w + 164 - 68 = 0 for w.
ANS: -4
QUESTION: Math problem: Solve 0 = -1331*r + 1320*r - 11 for r.
ANS: -1
QUESTION: Math problem: Solve 878*s = -887*s + 1744*s - 315 for s.
ANS:
-15