Q: What is the solution?
Solve -223 + 241 = -16*s + 130 for s.

A: 7

Q: What is the solution?
Solve 64*d = 100*d - 504 for d.

A: 14

Q: What is the solution?
Solve -16*l - 22*l = 1003 - 205 for l.

A:
-21