Solve 8*s = 5*s + 15 for s.
Solve this plz.

A: 5

Solve 72 = 9*h - 19 - 26 for h.
Solve this plz.

A: 13

Solve 193*a - 74*a + 990 = 53*a for a.
Solve this plz.

A:
-15