Q: Solve 85 + 81 = 47*n + 25 for n.

A: 3

Q: Solve -159*u - 591*u + 11250 = 0 for u.

A: 15

Q: Solve 614*q = 286*q + 298*q - 870 for q.

A: -29

Q: Solve 0 = 7*w - 9*w + 2 for w.

A:
1