Question: What is the solution?

Solve -35*u + 30*u = 5 for u.

Answer: -1

Question: What is the solution?

Solve -1 = 3*g - 16 for g.

Answer: 5

Question: What is the solution?

Solve 7 = -y + 4 for y.

Answer: -3

Question: What is the solution?

Solve -798*w + 73098 = -488*w - 1982*w - 686*w for w.

Answer:
-31