Question: What is the solution?

Solve 339*s + 274 - 4268 = 2077 + 1048 for s.

Answer: 21

Question: What is the solution?

Solve 61*a - 65*a = 0 for a.

Answer: 0

Question: What is the solution?

Solve 0 = -9*c + 32*c - 161 for c.

Answer: 7

Question: What is the solution?

Solve -6*o + 21 + 3 = 0 for o.

Answer:
4