Q: What is the solution?
Solve -13*c = 26*c - 29*c + 10 for c.

A: -1

Q: What is the solution?
Solve 18*b - 15*b - 18 = 0 for b.

A: 6

Q: What is the solution?
Solve 2*q = -q + 9 for q.

A:
3