Question: What is the solution?

Solve 144*w = 64*w + 659 - 2179 for w.

Answer: -19

Question: What is the solution?

Solve -306 = 21*m - 6*m + 36*m for m.

Answer: -6

Question: What is the solution?

Solve 5*r - 10*r - 20 = 0 for r.

Answer: -4

Question: What is the solution?

Solve 125*h - 1012 + 262 = 0 for h.

Answer:
6