Solve -47*u = -71*u - 86*u - 440 for u.
Solve this plz.

A: -4

Solve 0 = 707*u - 690*u + 238 for u.
Solve this plz.

A: -14

Solve 0 = -613*m - 56*m - 16056 for m.
Solve this plz.

A:
-24