Solve -42*s - 301 = 77 for s.
Solve this plz.

A: -9

Solve 0 = -1034*h + 1781*h + 1659*h + 48120 for h.
Solve this plz.

A: -20

Solve 0*a = -2*a for a.
Solve this plz.

A:
0