Solve 0 = 33*h - 30*h + 4*d, -3*d = 4*h - 7 for h.

4

Solve b = -4*n + 16, -3*n - 3*b + 17 = 5 for n.

4

Solve -22 + 18 = f - 3*k, -2 = -2*f + k for f.

2

Solve 3*b - 5*v = -20, 0*v - 4 = 5*b - v for b.

0

Solve -3*t = 3*r + 9, 3*t + 2*r + 0*r = -10 for t.

-4

Solve 3*b - 3*l = 0, -3*b + b + 4*l = 6 for b.

3

Solve 0*m = w + m + 3, m = 0 for w.

-3

Solve -71*d = -69*d + 3*n - 20, 3*n - 16 = -d for d.

4

Solve 2*m - 9 + 22 = -5*y, -y = -4*m - 15 for m.

-4

Solve m = -3*v + 7, 2*m = m + 4 for v.

1