Q: Solve:
Solve 156 = -12*w + 72 for w.

A: -7

Q: Solve:
Solve 510*c + 938*c - 17897 - 3823 = 0 for c.

A: 15

Q: Solve:
Solve 47*n + 48*n + 35*n = 910 for n.

A:
7