Solve 845*r - 16*r + 88*r = -211*r - 20304 for r.
Solve this plz.

A: -18

Solve 648*y - 6574 - 2846 = -996 for y.
Solve this plz.

A: 13

Solve -2492*c - 1684*c - 56305 = -881*c - 181515 for c.
Solve this plz.

A:
38