Q: Solve -5*o - 56 + 71 = 0 for o.

A: 3

Q: Solve -63*b - 5070 + 4440 = 0 for b.

A: -10

Q: Solve -90*y + 865*y + 11282 = 29*y - 11098 for y.

A: -30

Q: Solve 0 = 11*u + 36 - 14 for u.

A:
-2