Solve -17562 + 16960 = 43*c for c.
Solve this plz.

A: -14

Solve -58721 - 24968 = 17719*z - 12813 for z.
Solve this plz.

A: -4

Solve 864*k + 53633 = -1262*k - 22903 for k.
Solve this plz.

A:
-36