Question: What is the solution?

Solve -43*c = -2*c + 164 for c.

Answer: -4

Question: What is the solution?

Solve -29*d - 6770 = -5726 for d.

Answer: -36

Question: What is the solution?

Solve 324*j + 158*j - 449*j = -752*j + 38465 for j.

Answer: 49

Question: What is the solution?

Solve 4 = -33*n + 31*n for n.

Answer:
-2