Question: What is the solution?

Solve 23*o - 44*o + 13*o - 1 = 455 for o.

Answer: -57

Question: What is the solution?

Solve -64*z - 20*z - 45*z + 3080 = -19*z for z.

Answer: 28

Question: What is the solution?

Solve 40 + 23 = -10*l - 37 for l.

Answer: -10

Question: What is the solution?

Solve 4*o = -19 - 1 for o.

Answer:
-5