Problem: Math Problem
Solve 205*r - 220*r - 709 + 94 = 0 for r.

A: -41

Problem: Math Problem
Solve -1902 = 881*p + 1313 + 23215 for p.

A: -30

Problem: Math Problem
Solve 177*r = 614*r + 4807 for r.

A:
-11