Solve 2405*k - 64946 + 48215 - 24281 = 62403 for k.
Solve this plz.

A: 43

Solve -48*i - 35*i - 630 = -48*i for i.
Solve this plz.

A: -18

Solve 3*u - 11 + 5 = 0 for u.
Solve this plz.

A:
2