Solve 13*h + 80 = -7*h for h.
Solve this plz.

A: -4

Solve 0 = 27*i + 297 - 597 - 510 for i.
Solve this plz.

A: 30

Solve 0 = 16*p - 12*p + 4 for p.
Solve this plz.

A:
-1