Solve 98*a - 382980 = -378276 for a.
Solve this plz.

A: 48

Solve -52*u = 51*u + 63*u - 35*u + 917 for u.
Solve this plz.

A: -7

Solve 5516*i = 5549*i - 726 for i.
Solve this plz.

A:
22