Solve 8442 = -207*c - 195*c for c.
Solve this plz.

A: -21

Solve 7*d + 5307 = 19*d + 5391 for d.
Solve this plz.

A: -7

Solve -10*h - 40 = -18*h for h.
Solve this plz.

A:
5