Solve -20 = f + 3*u, 3*f + 10*u - 6*u + 35 = 0 for f.

-5

Solve -2*a - 10 = -4*s, -6*s + 5*s + 8 = 5*a for s.

3

Solve 3*s + 5*m + 6 = 0, -2*m = 5*s + 16 - 25 for s.

3

Solve w + 23 = -6*p + 10*p, 4*w - 22 = -3*p for p.

6

Solve 3*o - 3*f = -18, -18 = -52*o + 53*o - 4*f for o.

-2

Solve 0 = -2*k + 7*z + 14, -5*k + 2*z + 15 = 11 for k.

0

Solve -y = -4*w - 9, -8*w + 2*y = -6*w + 6 for w.

-2

Solve 3*b + 11 = z, 11*z + 5*b = 9*z for z.

5

Solve 3*p = -m - 6 - 1, -5 = -p - 4*m for p.

-3

Solve 0 = 3*n + 3*d - 18, 4*n - 9*d + 11*d - 16 = 0 for n.

2