Question: What is the solution?

Solve 7*b - 600 = 22*b + 25*b for b.

Answer: -15

Question: What is the solution?

Solve -9*q = -16*q + 21 for q.

Answer: 3

Question: What is the solution?

Solve -80*n = -2484 + 4644 for n.

Answer: -27

Question: What is the solution?

Solve 3*s + 130 = 130 for s.

Answer:
0