Question: What is the solution?

Solve 15*l - 70 = 20 for l.

Answer: 6

Question: What is the solution?

Solve 3241 = -43*o - 420*o for o.

Answer: -7

Question: What is the solution?

Solve 0 = -6*k - 859 + 829 for k.

Answer: -5

Question: What is the solution?

Solve -960*w + 933*w = -540 for w.

Answer:
20