Q: Solve:
Solve 38*o - 22*o = 61*o + 82*o - 2794 for o.

A: 22

Q: Solve:
Solve 139878*c - 5509 = 140072*c + 3803 for c.

A: -48

Q: Solve:
Solve 0 = -13*d - 0*d - 18*d for d.

A:
0