Solve 9*y - 1 = -28 for y.
Solve this plz.

A: -3

Solve -1121*c - 1338*c - 235200 = -583*c + 524*c for c.
Solve this plz.

A: -98

Solve -15 = -29*s + 34*s for s.
Solve this plz.

A:
-3