Q: What is the solution?
Solve 220*a - 420 = 136*a for a.

A: 5

Q: What is the solution?
Solve -111673 = 1601*o - 20416 for o.

A: -57

Q: What is the solution?
Solve 190*j - 17003 = -j - 1532 for j.

A:
81