Question: What is the solution?

Solve -15440 = 703*c + 262*c for c.

Answer: -16

Question: What is the solution?

Solve -79*x = -57*x for x.

Answer: 0

Question: What is the solution?

Solve 23*x + 14*x - x = 0 for x.

Answer: 0

Question: What is the solution?

Solve o + 18816 = 155*o + 230*o for o.

Answer:
49