Solve 4*h + 21 = 5*d, -5*h - 6 = -3*h + 2*d for h.

-4

Solve 2*w - 2*b + 10 = 2*b, -5*w - 4*b + 3 = 0 for w.

-1

Solve 2*f + u = 2, 5*f + 13 = 25*u - 23*u for f.

-1

Solve -3*h - 18 = -3*d, -h = 6*d - 2*d - 4 for h.

-4

Solve 4*t = -4*u + 2*t, 4 = 2*t for u.

-1

Solve -3*i + 13 - 3 = g, -5*g - 50 = -5*i for i.

5

Solve 4*g + 7 + 9 = 5*x, 5*g = -x - 20 for g.

-4

Solve 2*d + 53*n = 56*n - 14, 0 = -3*d - n - 10 for d.

-4

Solve 0 = -f + 5*s - 18, -3 = -4*s + 9 for f.

-3

Solve 21 = 5*k - 4*n, -n + 3 = 2*n for k.

5