Solve -90 = 48*h + 6 for h.
Solve this plz.

A: -2

Solve -2*s + 5*s = -6*s for s.
Solve this plz.

A: 0

Solve -3379*s = 3444*s - 7038*s + 16985 for s.
Solve this plz.

A:
79