Solve -608*u - 20960 = 320 for u.
Solve this plz.

A: -35

Solve -207715*i + 266 = -207753*i for i.
Solve this plz.

A: -7

Solve 45*a + 39*a - 26*a - 232 = 0 for a.
Solve this plz.

A:
4