Question: What is the solution?

Solve 589 - 521 = -4*w for w.

Answer: -17

Question: What is the solution?

Solve 17*q = 37*q - 16*q + 64 for q.

Answer: -16

Question: What is the solution?

Solve 0 = -191*g + 378*g - 190*g - 45 for g.

Answer: -15

Question: What is the solution?

Solve -643*n - 556*n + 575 = -1176*n for n.

Answer:
25