Solve 80*b - 84*b = 24 for b.
Solve this plz.

A: -6

Solve -511*v + 148*v = -3853 - 6386 - 4281 for v.
Solve this plz.

A: 40

Solve -3*p - 630 = -615 for p.
Solve this plz.

A:
-5