Question: What is the solution?

Solve 0 = 6*k - 26 + 32 for k.

Answer: -1

Question: What is the solution?

Solve -1375*j + 669*j + 683*j = 644 for j.

Answer: -28

Question: What is the solution?

Solve -359 = -20*c - 219 for c.

Answer: 7

Question: What is the solution?

Solve -457 + 1858 = -29*o - 1006 for o.

Answer:
-83