Q: What is the solution?
Solve -13*x - 10*x = -132 + 408 for x.

A: -12

Q: What is the solution?
Solve -115*d - 408 = 282 for d.

A: -6

Q: What is the solution?
Solve 423*w - 113*w = 10722 - 3592 for w.

A:
23