Solve 21*s - 8 = 23*s for s.
Solve this plz.

A: -4

Solve 227*q - 858*q + 106 = -279*q + 2570 for q.
Solve this plz.

A: -7

Solve 130*z - 1468 = 4432 + 3720 for z.
Solve this plz.

A:
74