Solve -4 = -s - 6 for s.

-2

Solve 0 = 19*s + 5*s - 168 for s.

7

Solve 0 = n + 6*n - 21 for n.

3

Solve 19*c = -19*c for c.

0

Solve -345*h + 22 = -367*h for h.

-1

Solve 29 = -51*h + 22*h for h.

-1

Solve 23*a = -6 - 17 for a.

-1

Solve 10*o + 3 = 9*o for o.

-3

Solve 0 + 204 = -34*l for l.

-6

Solve -12*h = -16*h - 4 for h.

-1