Question: What is the solution?

Solve l = 3*l for l.

Answer: 0

Question: What is the solution?

Solve 951 = 33*u + 324 for u.

Answer: 19

Question: What is the solution?

Solve 325447 = -212*z + 320147 for z.

Answer: -25

Question: What is the solution?

Solve -309*m + 146*m = -1213*m + 4200 for m.

Answer:
4