Question: What is the solution?

Solve -7*w - 73 + 52 = 0 for w.

Answer: -3

Question: What is the solution?

Solve 5*n = 6*n + 4 for n.

Answer: -4

Question: What is the solution?

Solve -38*f - 84*f + 36 - 127 = 31 for f.

Answer: -1

Question: What is the solution?

Solve 4*y - 129 = -145 for y.

Answer:
-4