Solve 17*r + 27 + 7 = 0 for r.
Solve this plz.

A: -2

Solve 669*c = 782*c - 678 for c.
Solve this plz.

A: 6

Solve 0 = -13*q + 4*q + 1238 - 1760 for q.
Solve this plz.

A:
-58