Q: Solve:
Solve 823*b + 9 = 832*b for b.

A: 1

Q: Solve:
Solve -23*b + 42*b + 968 = -69*b for b.

A: -11

Q: Solve:
Solve 0 = -3*a - 23*a - 47 + 47 for a.

A:
0