Solve -252*h - 256*h - 2040 = 2*h for h.
Solve this plz.

A: -4

Solve -177 + 138 = -3*r for r.
Solve this plz.

A: 13

Solve 104*l + 1860 = 346*l - 560 for l.
Solve this plz.

A:
10