Q: What is the solution?
Solve 63*b - 174 + 76 = 275 + 194 for b.

A: 9

Q: What is the solution?
Solve -6*u + 11 = -7 for u.

A: 3

Q: What is the solution?
Solve 0 = 20*c + 28 - 28 for c.

A:
0