Q: Solve:
Solve 0 = 694*o - 697*o + 9 for o.

A: 3

Q: Solve:
Solve 48*k + 158*k + 875899 = 858183 for k.

A: -86

Q: Solve:
Solve -8*m + 21*m = -8*m for m.

A:
0