Solve 0 = 11*x - 28*x - 51 for x.
Solve this plz.

A: -3

Solve -6*d - 6 = -24 for d.
Solve this plz.

A: 3

Solve 0 = 99*d + 563 + 130 for d.
Solve this plz.

A:
-7