Question: What is the solution?

Solve 428 = -15*z + 323 for z.

Answer: -7

Question: What is the solution?

Solve 140*w - 68725 = -71805 for w.

Answer: -22

Question: What is the solution?

Solve -183*n - 2364 = 14*n for n.

Answer: -12

Question: What is the solution?

Solve -8073 = 4*m - 8049 for m.

Answer:
-6