Solve -630 = 6*m - 510 for m.
Solve this plz.

A: -20

Solve 137*o - 528*o - 6061 = 160*o for o.
Solve this plz.

A: -11

Solve 0 = -59*l - 128 + 420 + 357 for l.
Solve this plz.

A:
11