Q: What is the solution?
Solve 16*l - 122*l = -39*l + 804 for l.

A: -12

Q: What is the solution?
Solve -17 = 28*d + 95 for d.

A: -4

Q: What is the solution?
Solve -254*b - 432 = -290*b for b.

A:
12