Solve 315095 - 300263 = -1854*i for i.
Solve this plz.

A: -8

Solve 231*u + 249*u + 4004 = 337*u for u.
Solve this plz.

A: -28

Solve -4*t + 24*t - 29 = 71 for t.
Solve this plz.

A:
5