Solve 400*a - 2628 + 628 = 0 for a.
Solve this plz.

A: 5

Solve 0 = -44*s + 266 + 160 + 102 for s.
Solve this plz.

A: 12

Solve 8 = 18*t - 16*t for t.
Solve this plz.

A:
4