Solve 1931*c - 4713*c - 6548*c - 971*c + 587157 = 0 for c.
Solve this plz.

A: 57

Solve -224 + 446 = 37*r + 111 for r.
Solve this plz.

A: 3

Solve -190659*j + 2886 = -190733*j for j.
Solve this plz.

A:
-39