Q: Solve:
Solve 116841 = 168*w - 1329*w - 1578*w - 6414 for w.

A: -45

Q: Solve:
Solve 0 = -30*d + 160 + 20 for d.

A: 6

Q: Solve:
Solve 5427 = 779*m - 2121 - 4137 for m.

A:
15