Solve -1383*u + 1508*u = -5125 for u.
Solve this plz.

A: -41

Solve 289 + 1776 = -29*m - 1861 + 127 for m.
Solve this plz.

A: -131

Solve 29 = -49*d + 323 for d.
Solve this plz.

A:
6