Solve -3*i = i - 7*i - 12 for i.
Solve this plz.

A: -4

Solve 8044*d + 11252*d - 706034 = 7123*d for d.
Solve this plz.

A: 58

Solve -5*p + 21 = 2*p for p.
Solve this plz.

A:
3