Question: What is the solution?

Solve -6889*o - 90 = -6898*o for o.

Answer: 10

Question: What is the solution?

Solve 267*q + 289*q = 552*q - 48 for q.

Answer: -12

Question: What is the solution?

Solve -18733 = 29*x - 18675 for x.

Answer: -2

Question: What is the solution?

Solve 13*b - 20 = 9*b for b.

Answer:
5