Solve 0 = 4*r + 14 - 10 for r.
Solve this plz.

A: -1

Solve 16016*z + 760 = 16056*z for z.
Solve this plz.

A: 19

Solve 3098*k - 3128*k + 180 = 0 for k.
Solve this plz.

A:
6