Solve 12*m - 284 = -344 for m.
Solve this plz.

A: -5

Solve 0*i + 20 = 4*i for i.
Solve this plz.

A: 5

Solve -7*l - 45*l + 571 = 2*l - 3479 for l.
Solve this plz.

A:
75