Problem: Math Problem
Solve -20*z - 220 + 80 = 0 for z.

A: -7

Problem: Math Problem
Solve 0 = -415*q + 242*q + 449*q + 505*q - 92158 for q.

A: 118

Problem: Math Problem
Solve 18 = -8*r - r for r.

A:
-2