Solve 29*a - 129*a + 900 = 0 for a.
Solve this plz.

A: 9

Solve 0 = -155698*h + 155745*h - 1128 for h.
Solve this plz.

A: 24

Solve -1274*h - 134*h - 30240 = 272*h for h.
Solve this plz.

A:
-18