Solve 15*p + 1200 = -121*p - 104*p for p.
Solve this plz.

A: -5

Solve 971*v - 353*v + 2472 = 0 for v.
Solve this plz.

A: -4

Solve -a - 10 = -3*a for a.
Solve this plz.

A:
5