Question: What is the solution?

Solve -2225*z = 132616 + 49834 for z.

Answer: -82

Question: What is the solution?

Solve 3*j = 2*j - 4*j for j.

Answer: 0

Question: What is the solution?

Solve -6612*w = -7272*w - 27060 for w.

Answer: -41

Question: What is the solution?

Solve 90 = 21*c - 6*c for c.

Answer:
6