Solve 3*c - 13 - 3 = 2*h, h + 1 = -2*c for h.

-5

Solve 0 = -5*c - 4*l - 2, -14*l = -3*c - 9*l + 21 for c.

2

Solve -2*c + 116 = -3*r + 91, 2*r - c = -15 for r.

-5

Solve c - 6*c - 30 = -5*p, 0 = -3*c + p - 8 for c.

-1

Solve -4*h - 10 = -3*h - b, b + 15 = -4*h for h.

-5

Solve 0 = -4*r + 2*s, -20*r - 18 = -19*r - 5*s for r.

2

Solve 4*b + 5*s = 1, -56*s + 55*s - 23 = -5*b for b.

4

Solve 0 = 3*q, 0 = -6*u + 3*u + 5*q for u.

0

Solve 0 = -4*f - 0*k + k - 19, -2*f + 3*k - 7 = 0 for f.

-5

Solve o - 18 = 5*i + 10, 0 = 2*o - 2*i - 16 for o.

3