Q: What is the solution?
Solve 10*a - 11*a - 4 = 0 for a.

A: -4

Q: What is the solution?
Solve 20*l - 44*l + 20*l = 0 for l.

A: 0

Q: What is the solution?
Solve 3438*c + 912 = 3486*c for c.

A:
19