Q: Solve:
Solve -168 = 17*u + 7*u for u.

A: -7

Q: Solve:
Solve 0 = 9*o - 6*o - 25 + 31 for o.

A: -2

Q: Solve:
Solve 7615 = 393*g - 2974 - 4544 + 985 for g.

A:
36