Problem: Math Problem
Solve 53*i + 210*i - 2154 = -156*i + 60*i for i.

A: 6

Problem: Math Problem
Solve 110 = -43*r + 67 for r.

A: -1

Problem: Math Problem
Solve 11*l - 21 - 23 = 0 for l.

A:
4