Q: What is the solution?
Solve 83*d - 42*d = 164 for d.

A: 4

Q: What is the solution?
Solve 92*w = 412 - 229 + 369 for w.

A: 6

Q: What is the solution?
Solve 0 = -15*j + 10*j - 25 for j.

A:
-5