Solve -4*n + 3*n = -20*n + 779 for n.
Solve this plz.

A: 41

Solve 0 = -48*i - 15*i - 252 for i.
Solve this plz.

A: -4

Solve 28*m - 30*m - 8 = 0 for m.
Solve this plz.

A:
-4