Solve -115*x - 30 = -120*x for x.
Solve this plz.

A: 6

Solve 321*b - 48*b = -137*b - 6970 for b.
Solve this plz.

A: -17

Solve -952*l - 549 = 173 + 1182 for l.
Solve this plz.

A:
-2