Solve 3*s = 5*s - 16 for s.
Solve this plz.

A: 8

Solve -34*c = -116*c + 977 + 417 for c.
Solve this plz.

A: 17

Solve 1517*z + 768 = 1453*z for z.
Solve this plz.

A:
-12