Solve 20 = -22*z + 105 + 113 for z.
Solve this plz.

A: 9

Solve 0 = 3*p + 318 - 315 for p.
Solve this plz.

A: -1

Solve 703*r + 35515 - 2537 = -3578 for r.
Solve this plz.

A:
-52