QUESTION: Math problem: Solve -18906 + 21961 = -65*k for k.
ANS: -47
QUESTION: Math problem: Solve -65 = -30*n + 85 for n.
ANS: 5
QUESTION: Math problem: Solve -1911*m - 45 = -1920*m for m.
ANS: 5
QUESTION: Math problem: Solve 0 = -40*z - 41*z for z.
ANS:
0