Q: Solve:
Solve -61*u + 6*u - 275 = 0 for u.

A: -5

Q: Solve:
Solve 321*a - 252*a - 65 - 4 = 0 for a.

A: 1

Q: Solve:
Solve -175 = -579*o + 2720 for o.

A:
5