Solve 210 = 780*n + 456 + 5994 for n.
Solve this plz.

A: -8

Solve -c - 9 = -4*c for c.
Solve this plz.

A: 3

Solve 17034 = 146*s + 283*s + 72*s for s.
Solve this plz.

A:
34