Solve -214*z - 49*z = -47*z - 21085 + 7477 for z.
Solve this plz.

A: 63

Solve 7 = 88*a - 81*a for a.
Solve this plz.

A: 1

Solve 0 = 6052*y - 6203*y - 7701 for y.
Solve this plz.

A:
-51